Description (CNA)
In UNIX Fourth Research Edition (v4), the su command is vulnerable to a buffer overflow due to the 'password' variable having a fixed size of 100 bytes. A local user can exploit this to gain root privileges. It is unlikely that UNIX v4 is running anywhere outside of a very small number of lab environments. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| AT&T Bell Labs / UNIX | affected 4 |
CWE
CWE-120
References
- https://sigma-star.at/blog/2025/12/unix-v4-buffer-overflow/
- https://www.tuhs.org/pipermail/tuhs/2026-January/032991.html
- https://discuss.systems/@ricci/115747843169814700
- https://www.spinellis.gr/blog/20251223/
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.