CVE-2021-22600 · netVigilance record NV22-0308
Linux Kernel Privilege Escalation
past due
What to do
Apply updates per vendor instructions.
CISA deadline 2022-05-02 · passed 4 years 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Linux Kernel contains a flaw in the packet socket (AF_PACKET) implementation which could lead to incorrectly freeing memory. A local user could exploit this for denial-of-service (DoS) or possibly for privilege escalation.
Who is affected
Linux Kernel. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-415.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 years 4 months ago
Sources
- NVD entry for CVE-2021-22600 nvd.nist.gov/vuln/detail/CVE-2021-22600
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-22600