Riasztások

An update for openjpeg2 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via a urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because HTTP_ST is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via the urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because REMOTE_PORT is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via the urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because SERVER_ID is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.

An update for libarchive is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

An update that solves three vulnerabilities and has one errata is now available.

linux-lts-xenial, linux-aws vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 14.04 ESM

Summary

Several security issues were fixed in the Linux kernel.

Software Description

• linux-aws - Linux kernel for Amazon Web Services (AWS) systems
• linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty

Details

USN-4254-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM.

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615)

It was discovered that a race condition existed in the Virtual Video Test Driver in the Linux kernel. An attacker with write access to /dev/video0 on a system with the vivid module loaded could possibly use this to gain administrative privileges. (CVE-2019-18683)

It was discovered that the btrfs file system in the Linux kernel did not properly validate metadata, leading to a NULL pointer dereference. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2019-18885)

It was discovered that multiple memory leaks existed in the Marvell WiFi-Ex Driver for the Linux kernel. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19057)

It was discovered that the crypto subsystem in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19062)

It was discovered that the Realtek rtlwifi USB device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19063)

Dan Carpenter discovered that the AppleTalk networking subsystem of the Linux kernel did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-19227)

It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle ioctl requests to get emulated CPUID features. An attacker with access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-19332)

It was discovered that the B2C2 FlexCop USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15291)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04 ESM

linux-image-4.4.0-1061-aws - 4.4.0-1061.65

linux-image-4.4.0-173-generic - 4.4.0-173.203~14.04.1

linux-image-4.4.0-173-generic-lpae - 4.4.0-173.203~14.04.1

linux-image-4.4.0-173-lowlatency - 4.4.0-173.203~14.04.1

linux-image-4.4.0-173-powerpc-e500mc - 4.4.0-173.203~14.04.1

linux-image-4.4.0-173-powerpc-smp - 4.4.0-173.203~14.04.1

linux-image-4.4.0-173-powerpc64-emb - 4.4.0-173.203~14.04.1

linux-image-4.4.0-173-powerpc64-smp - 4.4.0-173.203~14.04.1

linux-image-aws - 4.4.0.1061.62

linux-image-generic-lpae-lts-xenial - 4.4.0.173.152

linux-image-generic-lts-xenial - 4.4.0.173.152

linux-image-lowlatency-lts-xenial - 4.4.0.173.152

linux-image-powerpc-e500mc-lts-xenial - 4.4.0.173.152

linux-image-powerpc-smp-lts-xenial - 4.4.0.173.152

linux-image-powerpc64-emb-lts-xenial - 4.4.0.173.152

linux-image-powerpc64-smp-lts-xenial - 4.4.0.173.152

linux-image-virtual-lts-xenial - 4.4.0.173.152

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References

• USN-4254-1
• CVE-2019-14615
• CVE-2019-15291
• CVE-2019-18683
• CVE-2019-18885
• CVE-2019-19057
• CVE-2019-19062
• CVE-2019-19063
• CVE-2019-19227
• CVE-2019-19332

linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-oracle-5.0 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 18.04 LTS

Summary

Several security issues were fixed in the Linux kernel.

Software Description

• linux-aws-5.0 - Linux kernel for Amazon Web Services (AWS) systems
• linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gke-5.0 - Linux kernel for Google Container Engine (GKE) systems
• linux-oracle-5.0 - Linux kernel for Oracle Cloud systems

Details

It was discovered that the Atheros 802.11ac wireless USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15099)

It was discovered that a race condition existed in the Virtual Video Test Driver in the Linux kernel. An attacker with write access to /dev/video0 on a system with the vivid module loaded could possibly use this to gain administrative privileges. (CVE-2019-18683)

It was discovered that the btrfs file system in the Linux kernel did not properly validate metadata, leading to a NULL pointer dereference. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2019-18885)

It was discovered that the crypto subsystem in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19050, CVE-2019-19062)

It was discovered that the RSI 91x WLAN device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19071)

It was discovered that the Broadcom Netxtreme HCA device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19077)

It was discovered that the Atheros 802.11ac wireless USB device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19078)

It was discovered that the Qualcomm IPC Router TUN device driver in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19079)

It was discovered that the AMD GPU device drivers in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to possibly cause a denial of service (kernel memory exhaustion). (CVE-2019-19082)

Dan Carpenter discovered that the AppleTalk networking subsystem of the Linux kernel did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-19227)

Or Cohen discovered that the virtual console subsystem in the Linux kernel did not properly restrict writes to unimplemented vcsu (unicode) devices. A local attacker could possibly use this to cause a denial of service (system crash) or have other unspecified impacts. (CVE-2019-19252)

It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle ioctl requests to get emulated CPUID features. An attacker with access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-19332)

It was discovered that the ext4 file system implementation in the Linux kernel did not properly handle certain conditions. An attacker could use this to specially craft an ext4 file system that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19767)

It was discovered that the B2C2 FlexCop USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15291)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04 LTS

linux-image-5.0.0-1010-oracle - 5.0.0-1010.15~18.04.1

linux-image-5.0.0-1024-aws - 5.0.0-1024.27~18.04.1

linux-image-5.0.0-1029-gcp - 5.0.0-1029.30~18.04.1

linux-image-5.0.0-1029-gke - 5.0.0-1029.30~18.04.1

linux-image-aws-edge - 5.0.0.1024.38

linux-image-gcp - 5.0.0.1029.33

linux-image-gke-5.0 - 5.0.0.1029.17

linux-image-oracle-edge - 5.0.0.1010.9

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References

• CVE-2019-15099
• CVE-2019-15291
• CVE-2019-18683
• CVE-2019-18885
• CVE-2019-19050
• CVE-2019-19062
• CVE-2019-19071
• CVE-2019-19077
• CVE-2019-19078
• CVE-2019-19079
• CVE-2019-19082
• CVE-2019-19227
• CVE-2019-19252
• CVE-2019-19332
• CVE-2019-19767

fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.

linux-hwe vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 18.04 LTS

Summary

he Linux kernel could be made to expose sensitive information.

Software Description

• linux-hwe - Linux hardware enablement (HWE) kernel

Details

USN-4253-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.10 for Ubuntu 18.04 LTS.

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04 LTS

linux-image-5.3.0-28-generic - 5.3.0-28.30~18.04.1

linux-image-5.3.0-28-generic-lpae - 5.3.0-28.30~18.04.1

linux-image-5.3.0-28-lowlatency - 5.3.0-28.30~18.04.1

linux-image-generic-hwe-18.04 - 5.3.0.28.96

linux-image-generic-lpae-hwe-18.04 - 5.3.0.28.96

linux-image-lowlatency-hwe-18.04 - 5.3.0.28.96

linux-image-snapdragon-hwe-18.04 - 5.3.0.28.96

linux-image-virtual-hwe-18.04 - 5.3.0.28.96

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References

• USN-4253-1
• CVE-2019-14615

Feedgen (python feedgen) before 0.9.0 is susceptible to XML Denial of Service attacks. The *feedgen* library allows supplying XML as content for some of the available fields. This XML will be parsed and integrated into the existing XML tree. During this process, feedgen is vulnerable to XML Denial of Service Attacks (e.g. XML Bomb). This becomes a concern in particular if feedgen is used to include content from untrused sources and if XML (including XHTML) is directly included instead of providing plain tex content only. This problem has been fixed in feedgen 0.9.0 which disallows XML entity expansion and external resources.

Cups Easy (Purchase & Inventory) 1.0 is vulnerable to CSRF that leads to admin account takeover via passwordmychange.php.

Cups Easy (Purchase & Inventory) 1.0 is vulnerable to CSRF that leads to admin account deletion via userdelete.php.

The Elementor plugin before 2.8.5 for WordPress suffers from a reflected XSS vulnerability on the elementor-system-info page. These can be exploited by targeting an authenticated user.

linux-hwe, linux-aws-hwe vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 16.04 LTS

Summary

Several security issues were fixed in the Linux kernel.

Software Description

• linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems
• linux-hwe - Linux hardware enablement (HWE) kernel

Details

USN-4255-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS.

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615)

It was discovered that a race condition can lead to a use-after-free while destroying GEM contexts in the i915 driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-7053)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04 LTS

linux-image-4.15.0-1058-aws - 4.15.0-1058.60~16.04.1

linux-image-4.15.0-76-generic - 4.15.0-76.86~16.04.1

linux-image-4.15.0-76-generic-lpae - 4.15.0-76.86~16.04.1

linux-image-4.15.0-76-lowlatency - 4.15.0-76.86~16.04.1

linux-image-aws-hwe - 4.15.0.1058.58

linux-image-generic-hwe-16.04 - 4.15.0.76.96

linux-image-generic-lpae-hwe-16.04 - 4.15.0.76.96

linux-image-lowlatency-hwe-16.04 - 4.15.0.76.96

linux-image-oem - 4.15.0.76.96

linux-image-virtual-hwe-16.04 - 4.15.0.76.96

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References

• USN-4255-1
• CVE-2019-14615
• CVE-2020-7053

In TensorFlow before 1.15.2 and 2.0.1, converting a string (from Python) to a tf.float16 value results in a segmentation fault in eager mode as the format checks for this use case are only in the graph mode. This issue can lead to denial of service in inference/training where a malicious attacker can send a data point which contains a string instead of a tf.float16 value. Similar effects can be obtained by manipulating saved models and checkpoints whereby replacing a scalar tf.float16 value with a scalar string will trigger this issue due to automatic conversions. This can be easily reproduced by tf.constant("hello", tf.float16), if eager execution is enabled. This issue is patched in TensorFlow 1.15.1 and 2.0.1 with this vulnerability patched. TensorFlow 2.1.0 was released after we fixed the issue, thus it is not affected. Users are encouraged to switch to TensorFlow 1.15.1, 2.0.1 or 2.1.0.

An Information Disclosure vulnerability exists due to insufficient validation of authentication cookies for the RTSP session in D-Link DCS-5635 1.01, DCS-1100L 1.04, DCS-1130L 1.04, DCS-1100 1.03/1.04_US, DCS-1130 1.03/1.04_US , DCS-2102 1.05_RU/1.06/1.06_FR/1.05_TESCO, DCS-2121 1.05_RU/1.06/1.06_FR/1.05_TESCO, DCS-3410 1.02, DCS-5230 1.02, DCS-5230L 1.02, DCS-6410 1.0, DCS-7410 1.0, DCS-7510 1.0, and WCS-1100 1.02, which could let a malicious user obtain unauthorized access to video streams.

An Authentication vulnerability exists in D-LINK WCS-1100 1.02, TESCO DCS-2121 1.05_TESCO, TESCO DCS-2102 1.05_TESCO, DCS-7510 1.00, DCS-7410 1.00, DCS-6410 1.00, DCS-5635 1.01, DCS-5605 1.01, DCS-5230L 1.02, DCS-5230 1.02, DCS-3430 1.02, DCS-3411 1.02, DCS-3410 1.02, DCS-2121 1.06_FR, DCS-2121 1.06, DCS-2121 1.05_RU, DCS-2102 1.06_FR, DCS-2102 1.06, DCS-2102 1.05_RU, DCS-1130L 1.04, DCS-1130 1.04_US, DCS-1130 1.03, DCS-1100L 1.04, DCS-1100 1.04_US, and DCS-1100 1.03 due to hard-coded credentials that serve as a backdoor, which allows remote attackers to access the RTSP video stream.

An issue was discovered in Joomla! before 3.9.15. A missing CSRF token check in the LESS compiler of com_templates causes a CSRF vulnerability.