CVEvulnerability
CVE-2021-43057
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-10-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-416
Description
An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (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.
Affected configurations
• linux linux kernel (>= 5.13 < 5.14.8)
• netapp h300s firmware
• netapp h500s firmware
• netapp h700s firmware
• netapp h300e firmware
• netapp h500e firmware
• netapp h700e firmware
• netapp h410s firmware
• netapp h410c firmware
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2229 Exploit, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8 Patch, Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd8715523ba3db7 Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20211125-0001/ Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2229 Exploit, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8 Patch, Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd8715523ba3db7 Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20211125-0001/ Third Party Advisory