CVE-2026-58096 — ppp(8): missing length validation in LcpDecodeConfig()

CVE-2026-58096

ppp(8): missing length validation in LcpDecodeConfig() PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
FreeBSD / FreeBSD	affected 15.1-RELEASE before p3; affected 15.0-RELEASE before p13; affected 14.4-RELEASE before p9

CWE

CWE-130, CWE-787

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.