It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- Fix
- Fixed in 4.14.316, 4.19.256, 5.4.211, 5.10.137, 5.15.61, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: active
- Automatable: no
- Technical impact: total
Summary
The software affected is nftables, the Linux kernel's packet filtering and firewall subsystem. An attacker who can manipulate nftables rules could trigger a use-after-free memory error, which may crash the system or potentially allow code execution with kernel privileges.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA SSVC assessment
Exploitation: active · Automatable: no · Technical impact: total
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- linux
From 3.16 · fixed in 4.14.316; From 4.15 · fixed in 4.19.256; From 4.20 · fixed in 5.4.211; From 5.5 · fixed in 5.10.137; From 5.11 · fixed in 5.15.61; From 5.16 · fixed in 5.18.18; From 5.19 · fixed in 5.19.2