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security advisorydenial of servicesoftware updateUbuntu 20.04 LTS USN-5302-1: Moderate Kernel Security Issues
Several security issues were fixed in the Linux kernel.. =========================================================================Ubuntu Security Notice USN-5302-1 February 22, 2022 linux-oem-5.14 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-oem-5.14: Linux kernel for OEM systems Details: Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492) Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-43976) Wenqing Liu discovered that the f2fs file system implementation in the Linux kernel did not properly validate inode types while performing garbage collection. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2021-44879) Samuel Page discovered that the Transparent Inter-Process Communication (TIPC) protocol implementation in the Linux kernel contained a stack-based buffer overflow. A remote attacker could use this to cause a denial of service (system crash) for systems that have a TIPC bearer configured. (CVE-2022-0435) Lyu Tao discovered that the NFS implementation in the Linux kernel did not properly handle requests to open a directory on a regular file. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-24448) It was discovered that the YAM AX.25 device driver in the Linux kernel did not properly deallocate memory in some error conditions. A local privilegedattacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2022-24959) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.14.0-1024-oem 5.14.0-1024.26 linux-image-oem-20.04 5.14.0.1024.22 linux-image-oem-20.04b 5.14.0.1024.22 linux-image-oem-20.04c 5.14.0.1024.22 linux-image-oem-20.04d 5.14.0.1024.22 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: https://ubuntu.com/security/notices/USN-5302-1 CVE-2021-43976, CVE-2021-44879, CVE-2022-0435, CVE-2022-0492, CVE-2022-24448, CVE-2022-24959 Package Information: https://launchpad.net/ubuntu/+source/linux-oem-5.14/5.14.0-1024.26 . Tackling security vulnerabilities in Ubuntu 20.04 LTS that impact the Linux kernel through essential updates for kernel environments.. Linux Kernel Issues, Ubuntu Security Notice, Kernel Updates, Administrative Privileges. . LinuxSecurity.com Team
Feb 22, 2022
Ubuntu
98
security advisoryRed Hatbuffer overflowRed Hat: RHSA-2019-2125-01 Moderate: ovmf Privilege Escalation Issues
An update for ovmf is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: ovmf security and enhancement update Advisory ID: RHSA-2019:2125-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:2125 Issue date: 2019-08-06 CVE Names: CVE-2017-5731 CVE-2017-5732 CVE-2017-5733 CVE-2017-5734 CVE-2017-5735 CVE-2018-3613 CVE-2018-5407 CVE-2018-12181 CVE-2019-0160 CVE-2019-0161 ==================================================================== 1. Summary: An update for ovmf is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server (v. 7) - noarch 3. Description: OVMF (Open Virtual Machine Firmware) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Security Fix(es): * edk2: Privilege escalation via processing of malformed files in TianoCompress.c (CVE-2017-5731) * edk2: Privilege escalation via processing of malformed files in BaseUefiDecompressLib.c (CVE-2017-5732) * edk2: Privilege escalation via heap-based buffer overflow in MakeTable() function (CVE-2017-5733) * edk2: Privilege escalation via stack-based buffer overflow in MakeTable() function (CVE-2017-5734) *edk2: Privilege escalation via heap-based buffer overflow in Decode() function (CVE-2017-5735) * edk2: Logic error in MdeModulePkg in EDK II firmware allows for privilege escalation by authenticated users (CVE-2018-3613) * openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash) (CVE-2018-5407) * edk2: Stack buffer overflow with corrupted BMP (CVE-2018-12181) * edk2: buffer overflows in PartitionDxe and UdfDxe with long file names and invalid UDF media (CVE-2019-0160) * edk2: stack overflow in XHCI causing denial of service (CVE-2019-0161) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1641433 - CVE-2018-3613 edk2: Logic error in MdeModulePkg in EDK II firmware allows for privilege escalation by authenticated users1641442 - CVE-2017-5731 edk2: Privilege escalation via processing of malformed files in TianoCompress.c 1641446 - CVE-2017-5732 edk2: Privilege escalation via processing of malformed files in BaseUefiDecompressLib.c 1641450 - CVE-2017-5733 edk2: Privilege escalation via heap-based buffer overflow in MakeTable() function 1641458 - CVE-2017-5734 edk2: Privilege escalation via stack-based buffer overflow in MakeTable() function 1641465 - CVE-2017-5735 edk2: Privilege escalation via heap-based buffer overflow in Decode() function 1645695 - CVE-2018-5407 openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash) 1686783 - CVE-2018-12181 edk2: Stack buffer overflow with corrupted BMP 1691640 - CVE-2019-0160 edk2: buffer overflows inPartitionDxe and UdfDxe with long file names and invalid UDF media 1694065 - CVE-2019-0161 edk2: stack overflow in XHCI causing denial of service 6. Package List: Red Hat Enterprise Linux Server (v. 7): Source: ovmf-20180508-6.gitee3198e672e2.el7.src.rpm noarch: OVMF-20180508-6.gitee3198e672e2.el7.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-5731 https://access.redhat.com/security/cve/CVE-2017-5732 https://access.redhat.com/security/cve/CVE-2017-5733 https://access.redhat.com/security/cve/CVE-2017-5734 https://access.redhat.com/security/cve/CVE-2017-5735 https://access.redhat.com/security/cve/CVE-2018-3613 https://access.redhat.com/security/cve/CVE-2018-5407 https://access.redhat.com/security/cve/CVE-2018-12181 https://access.redhat.com/security/cve/CVE-2019-0160 https://access.redhat.com/security/cve/CVE-2019-0161 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPGv1 iQIVAwUBXUl2ZNzjgjWX9erEAQhKuA/+O5K7BxvCHuj1pDM/pezYzjBfOcdVKQWz L61IFKCy653XFNrw0fLFh8Er+/vkrlZD93rmGl9JqU4PmaeqO8Tofgw9d3XsuaI6 7hWuhyiYqjzkbRP+XZGQK3B8a8aY4a2uRMjNemo9nMjLTuEpkGWShxo6O0AGPuCG GLhV6PTqAmNaxQSqEIdzzBk/YTVx+/ElEKEAYINfhyFV/KLAJcEso/v9DwA0vRaR J0srktZqKHG0WZ8JUMGBT+iEfwsgWI/oZP2DdcUwALTtS8LiGsY6eUmhR6Hj7BBx DDazP8ihme8q1Z3sTZVb+s2O4/v76bFexY6Q+k5SkS9/Xs8kYan8twTXo+r3d8Hy AJBtCnUS8WQV3mXokvIjPtEWfzomcL0N2RYJlhFMFwO43LLUfBH2k7yq+4qQRPqC KJI/I0lqckFDPJcW1T5CPhzPmixGchWoJpMzxNI4axznXg5SeyEX0Rd2czsuCUA0 wPXmrt6VBpEReROhjY0707Wyaq65BZws9+E7CoXDjvKiobQ/yHUVmv1GdUDeHpH5 dhOU+BMp38VwPORp/hX/cbm+FIZyPZWBKtOF/fuPJ3VV8xKNyGZ4Igcr9AdHT9O+ nHDfz2bu3595ZdZlUMw5wMb3pvtT48dT1NAgwsvTWgts/p9tg/JqoD3DJkHQaDiG bSZXnvoCTGA=vpvG -----END PGP SIGNATURE----- -- RHSA-announce mailing list
Aug 06, 2019
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