Description
LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write.
A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp(8) or potentially execute arbitrary code as root.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeBSD | FreeBSD | 15.1-RELEASE – < p3, 15.0-RELEASE – < p13, 14.4-RELEASE – < p9 | p3 |
Advisories 1
- WID-SEC-2026-3034 FreeBSD Project FreeBSD OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 25, 2026
References
- https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc vendor-advisory