CVE-2020-7053: Use After Free
First published: Tue Jan 14 2020(Updated: )
A use-after-free flaw was found in the Linux kernel’s GPU driver functionality when destroying GEM context. A local user could use this flaw to crash the system or potentially escalate their privileges.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-1160.21.1.rt56.1158.el7 | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| redhat/kernel | <0:3.10.0-1160.21.1.el7 | 0:3.10.0-1160.21.1.el7 |
| redhat/kernel-rt | <0:4.18.0-193.rt13.51.el8 | 0:4.18.0-193.rt13.51.el8 |
| redhat/kernel | <0:4.18.0-193.el8 | 0:4.18.0-193.el8 |
| Linux Linux kernel | >=4.14<=4.14.165 | |
| Linux Linux kernel | >=4.19<=4.19.96 | |
| Linux Linux kernel | >=5.0<=5.2 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.6-1 6.12.8-1 |
Remedy
In case of dedicated graphic card presence and i915 GPU is not being used, you can prevent module i915 from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-7053 https://nvd.nist.gov/vuln/detail/CVE-2020-7053
- https://bugzilla.redhat.com/show_bug.cgi?id=1795624
- https://access.redhat.com/errata/RHSA-2021:0857
- https://access.redhat.com/errata/RHSA-2021:0856
- https://access.redhat.com/errata/RHSA-2020:1567
- https://access.redhat.com/errata/RHSA-2020:1769
- https://access.redhat.com/security/cve/cve-2020-7053
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1859522
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7dc40713618c884bf07c030d1ab1f47a9dc1f310
- https://lore.kernel.org/stable/20200114183937.12224-1-tyhicks@canonical.com
- https://security.netapp.com/advisory/ntap-20200204-0002/
- https://usn.ubuntu.com/4255-1/
- https://usn.ubuntu.com/4255-2/
- https://usn.ubuntu.com/4285-1/
- https://usn.ubuntu.com/4287-1/
- https://usn.ubuntu.com/4287-2/
- https://launchpad.net/bugs/cve/CVE-2020-7053
- https://lore.kernel.org/stable/20200114183937.12224-1-tyhicks%40canonical.com
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7dc40713618c884bf07c030d1ab1f47a9dc1f310
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1795626
- https://access.redhat.com/solutions/41278
- https://lore.kernel.org/stable/20200114183937.12224-1-tyhicks@canonical.com/
- https://security-tracker.debian.org/tracker/CVE-2020-7053
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7053
- https://nvd.nist.gov/vuln/detail/CVE-2020-7053
- https://ubuntu.com/security/CVE-2020-7053
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/severity
- agent/weakness
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-7053
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/remedy
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/last-modified-date
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/event
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/4.14
- version/linux linux kernel/4.14.165
- version/linux linux kernel/4.19
- version/linux linux kernel/4.19.96
- version/linux linux kernel/5.0
- version/linux linux kernel/5.2
- package-manager/debian