CVE-2026-31631
rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.23, 6.19.13
- 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
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix buffer overread in rxgk_do_verify_authenticator() Fix rxgk_do_verify_authenticator() to check the buffer size before checking the nonce.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a · fixed in 794586789800b16dcbe235452494f4223ac80413; From 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a · fixed in 1c4422d8be81718ecb15d79aedff607323085201; From 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a · fixed in f564af387c8c28238f8ebc13314c589d7ba8475d
- Linux Linux
6.16
- KernelLinux
From 6.16.0 · fixed in 6.18.23; From 6.19.0 · fixed in 6.19.13