CVE-2021-43057
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-43057
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43057.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-43057
- Related
- Published
- 2021-10-28T04:15:08Z
- Modified
- 2024-09-11T02:00:05Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinuxptracetraceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task.
- References
-
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd8715523ba3db7
- https://security.netapp.com/advisory/ntap-20211125-0001/
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2229
- https://security-tracker.debian.org/tracker/CVE-2021-43057
Affected packages
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source