High severity · published Sep 29, 2023
CVE-2023-44466
An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5
8.8
CVSS
45.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)45.6% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.11 before 5.15.121; 5.16 before 6.1.40; 6.2 before 6.4.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-44466
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-44466
Mailing List
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a282a2f10539dce2aa619e71e1817570d557fc97
Exploit
https://github.com/google/security-research/security/advisories/GHSA-jg27-jx6w-xwph
Patch
https://github.com/torvalds/linux/commit/a282a2f10539dce2aa619e71e1817570d557fc97
Third Party Advisory
https://security.netapp.com/advisory/ntap-20231116-0003/
Mailing List
https://www.spinics.net/lists/ceph-devel/msg57909.html
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