CVE-1999-0305

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 1998-02-01 · updated 2026-06-16

Description

The system configuration control (sysctl) facility in BSD based operating systems OpenBSD 2.2 and earlier, and FreeBSD 2.2.5 and earlier, does not properly restrict source routed packets even when the (1) dosourceroute or (2) forwarding variables are set, which allows remote attackers to spoof TCP connections.

Affected products

Bsdi Bsd Os: all versions
FreeBSD: 2.2, 2.2.5
OpenBSD: 2.0, 2.1, 2.2

References

http://www.openbsd.org/advisories/sourceroute.txt
http://www.osvdb.org/11502
https://exchange.xforce.ibmcloud.com/vulnerabilities/736
http://www.openbsd.org/advisories/sourceroute.txt
http://www.osvdb.org/11502
https://exchange.xforce.ibmcloud.com/vulnerabilities/736

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