Description
A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | Linux Kernel | 5.9.6 |
References
- http://www.openwall.com/lists/oss-security/2020/11/30/5Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/28/1Exploit, Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1897668%2CIssue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6cPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210702-0004/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/11/30/5%2CMailing List
- https://www.openwall.com/lists/oss-security/2020/12/28/1%2CMailing List
- http://www.openwall.com/lists/oss-security/2020/11/30/5Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/28/1Exploit, Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1897668%2CIssue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6cPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210702-0004/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/11/30/5%2CMailing List
- https://www.openwall.com/lists/oss-security/2020/12/28/1%2CMailing List
Timeline
- Published
- May 26, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified