CVEvulnerability
CVE-2020-8428
7.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-01-29
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- CVSS 2.0 ([email protected])
- 3.6 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:P
- Weaknesses
- CWE-416
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.
Affected configurations
• linux linux kernel (>= 4.19 < 5.5)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html lists.opensuse.org
- http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html packetstormsecurity.com
- http://www.openwall.com/lists/oss-security/2020/01/28/4 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/02/02/1 www.openwall.com
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html lists.debian.org
- https://security.netapp.com/advisory/ntap-20200313-0003/ security.netapp.com
- https://usn.ubuntu.com/4318-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4319-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4320-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4324-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4325-1/ usn.ubuntu.com
- https://www.debian.org/security/2020/dsa-4667 www.debian.org
- https://www.debian.org/security/2020/dsa-4698 www.debian.org
- https://www.openwall.com/lists/oss-security/2020/01/28/2 Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html lists.opensuse.org
- http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html packetstormsecurity.com
- http://www.openwall.com/lists/oss-security/2020/01/28/4 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/02/02/1 www.openwall.com
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html lists.debian.org
- https://security.netapp.com/advisory/ntap-20200313-0003/ security.netapp.com
- https://usn.ubuntu.com/4318-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4319-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4320-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4324-1/ usn.ubuntu.com
- https://usn.ubuntu.com/4325-1/ usn.ubuntu.com
- https://www.debian.org/security/2020/dsa-4667 www.debian.org
- https://www.debian.org/security/2020/dsa-4698 www.debian.org
- https://www.openwall.com/lists/oss-security/2020/01/28/2 Mailing List, Third Party Advisory