Unrated severityNVD Advisory· Published Jan 28, 2020· Updated Aug 4, 2024
CVE-2020-8428
CVE-2020-8428
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
102- Linux/Linux kerneldescription
- Range: <5.5
- osv-coords100 versionspkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/kernel-vanilla&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP1pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP1_Update_9&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP1pkg:rpm/suse/kernel-livepatch-SLE15_Update_18&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP4pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP1pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP4pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP1pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP1pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP4pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP1pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP1pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP4pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP1pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_12&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_3&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.12.14-lp151.28.40.1+ 99 more
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-lp151.28.40.1
- (no CPE)range: < 4.12.14-8.27.1
- (no CPE)range: < 4.12.14-6.37.1
- (no CPE)range: < 4.12.14-16.10.1
- (no CPE)range: < 4.12.14-6.37.1
- (no CPE)range: < 4.12.14-16.10.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.2
- (no CPE)range: < 1-3.5.1
- (no CPE)range: < 1-1.5.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-8.15.1
- (no CPE)range: < 4.12.14-10.5.1
- (no CPE)range: < 4.12.14-14.17.1
- (no CPE)range: < 4.12.14-8.15.1
- (no CPE)range: < 4.12.14-10.5.1
- (no CPE)range: < 4.12.14-14.17.1
- (no CPE)range: < 4.12.14-8.27.1
- (no CPE)range: < 4.12.14-6.37.1
- (no CPE)range: < 4.12.14-16.10.1
- (no CPE)range: < 4.12.14-6.37.1
- (no CPE)range: < 4.12.14-16.10.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-8.15.1
- (no CPE)range: < 4.12.14-10.5.1
- (no CPE)range: < 4.12.14-14.17.1
- (no CPE)range: < 4.12.14-8.27.1
- (no CPE)range: < 4.12.14-6.37.1
- (no CPE)range: < 4.12.14-16.10.1
- (no CPE)range: < 4.12.14-6.37.1
- (no CPE)range: < 4.12.14-16.10.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-95.48.1
- (no CPE)range: < 4.12.14-122.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-8.15.1
- (no CPE)range: < 4.12.14-10.5.1
- (no CPE)range: < 4.12.14-14.17.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 4.12.14-197.34.1
- (no CPE)range: < 4.12.14-150.52.1
- (no CPE)range: < 1-6.3.1
- (no CPE)range: < 1-8.5.1
Patches
Vulnerability mechanics
References
16- lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlmitrevendor-advisoryx_refsource_SUSE
- usn.ubuntu.com/4318-1/mitrevendor-advisoryx_refsource_UBUNTU
- usn.ubuntu.com/4319-1/mitrevendor-advisoryx_refsource_UBUNTU
- usn.ubuntu.com/4320-1/mitrevendor-advisoryx_refsource_UBUNTU
- usn.ubuntu.com/4324-1/mitrevendor-advisoryx_refsource_UBUNTU
- usn.ubuntu.com/4325-1/mitrevendor-advisoryx_refsource_UBUNTU
- www.debian.org/security/2020/dsa-4667mitrevendor-advisoryx_refsource_DEBIAN
- www.debian.org/security/2020/dsa-4698mitrevendor-advisoryx_refsource_DEBIAN
- packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.htmlmitrex_refsource_MISC
- www.openwall.com/lists/oss-security/2020/01/28/4mitremailing-listx_refsource_MLIST
- www.openwall.com/lists/oss-security/2020/02/02/1mitremailing-listx_refsource_MLIST
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/mitrex_refsource_MISC
- github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6mitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlmitremailing-listx_refsource_MLIST
- security.netapp.com/advisory/ntap-20200313-0003/mitrex_refsource_CONFIRM
- www.openwall.com/lists/oss-security/2020/01/28/2mitrex_refsource_MISC
News mentions
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