ksmbd: fix use-after-free in kerberos authentication
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.1.138, 6.6.90, 6.12.28, 6.14.6
- 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: none
- Automatable: yes
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in kerberos authentication Setting sess->user = NULL was introduced to fix the dangling pointer created by ksmbd_free_user. However, it is possible another thread could be operating on the session and make use of sess->user after it has been passed to ksmbd_free_user but before sess->user is set to NULL.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: total
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Linux Linux
From 0626e6641f6b467447c81dd7678a69c66f7746cf · fixed in e34a33d5d7e87399af0a138bb32f6a3e95dd83d2; From 0626e6641f6b467447c81dd7678a69c66f7746cf · fixed in b447463562238428503cfba1c913261047772f90; From 0626e6641f6b467447c81dd7678a69c66f7746cf · fixed in e18c616718018dfc440e4a2d2b94e28fe91b1861; From 0626e6641f6b467447c81dd7678a69c66f7746cf · fixed in 28c756738af44a404a91b77830d017bb0c525890; From 0626e6641f6b467447c81dd7678a69c66f7746cf · fixed in e86e9134e1d1c90a960dd57f59ce574d27b9a124
- Linux Linux
5.15
- KernelLinux
From 5.15.0 · fixed in 6.1.138; From 6.2.0 · fixed in 6.6.90; From 6.7.0 · fixed in 6.12.28; From 6.13.0 · fixed in 6.14.6