CVE-2023-44466
There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 44.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 44.89% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
EPSS 44.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a282a2f10539dce2aa619e71e1817570d557fc97Mailing List, Patch
- https://github.com/google/security-research/security/advisories/GHSA-jg27-jx6w-xwphExploit, Third Party Advisory
- https://github.com/torvalds/linux/commit/a282a2f10539dce2aa619e71e1817570d557fc97Patch
- https://security.netapp.com/advisory/ntap-20231116-0003/Third Party Advisory
- https://www.spinics.net/lists/ceph-devel/msg57909.htmlMailing List, Patch
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a282a2f10539dce2aa619e71e1817570d557fc97Mailing List, Patch
- https://github.com/google/security-research/security/advisories/GHSA-jg27-jx6w-xwphExploit, Third Party Advisory
- https://github.com/torvalds/linux/commit/a282a2f10539dce2aa619e71e1817570d557fc97Patch
- https://security.netapp.com/advisory/ntap-20231116-0003/Third Party Advisory
- https://www.spinics.net/lists/ceph-devel/msg57909.htmlMailing List, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.