Denial of Service (DoS) Affecting freebsd package, versions [,4.5]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.01% (84th percentile)

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  • Snyk IDSNYK-UNMANAGED-FREEBSD-2383055
  • published26 Jan 2022
  • disclosed12 Aug 2002
  • creditUnknown

Introduced: 12 Aug 2002

CVE-2002-0518  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

There is no fixed version for freebsd.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). The SYN cache (syncache) and SYN cookie (syncookie) mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service (crash) (1) via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or (2) by killing and restarting a process that listens on the same socket, which does not properly clear the old inpcb pointer on restart.

References

CVSS Scores

version 3.1