CVE-2005-0097

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of...

5.0 MediumFix available

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of service (crash) via a malformed NTLM type 3 message that triggers a NULL dereference.

Exploit likelihood

10.6%Up 8.5 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of service (crash) via a malformed NTLM type 3 message that triggers a NULL dereference.

Record: CVE-2005-0097
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of service (crash) via a malformed NTLM type 3 message that triggers a NULL dereference.

Record: CVE-2005-0097
Updated: 2026-11-02

EUVDEUVD-2005-0098 No score

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of service (crash) via a malformed NTLM type 3 message that triggers a NULL dereference.

Record: EUVD-2005-0098
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gfx6-98p8-rj23 No score

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of...

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of service (crash) via a malformed NTLM type 3 message that triggers a NULL dereference.

Record: GHSA-gfx6-98p8-rj23
Updated: 2026-11-02

OSV No score

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of service (crash) via a malformed NTLM type 3 message that triggers a NULL dereference.

Record: CVE-2005-0097
Updated: 2026-11-02

OSVDEBIAN-CVE-2005-0097 No score

The NTLM component in Squid 2.5.STABLE7 and earlier allows remote attackers to cause a denial of service (crash) via a malformed NTLM type 3 message that triggers a NULL dereference.

Record: DEBIAN-CVE-2005-0097
Updated: 2026-11-02

Affected products

squid

Affected packages

Affected packages
Package	Affected	Fixed
`squid` Debian:12	before 2.5.7-4	2.5.7-4
`squid` Debian:13	before 2.5.7-4	2.5.7-4
`squid` Debian:14	before 2.5.7-4	2.5.7-4
`squid` Red Hat:enterprise_linux:4::as	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3
`squid-debuginfo` Red Hat:enterprise_linux:4::as	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3
`squid` Red Hat:enterprise_linux:4::desktop	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3
`squid-debuginfo` Red Hat:enterprise_linux:4::desktop	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3
`squid` Red Hat:enterprise_linux:4::es	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3
`squid-debuginfo` Red Hat:enterprise_linux:4::es	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3
`squid` Red Hat:enterprise_linux:4::ws	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3

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Affected packages
Package	Affected	Fixed
`squid-debuginfo` Red Hat:enterprise_linux:4::ws	before 7:2.5.STABLE6-3.4E.3	7:2.5.STABLE6-3.4E.3
`squid` Red Hat:enterprise_linux:3::as	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7
`squid-debuginfo` Red Hat:enterprise_linux:3::as	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7
`squid` Red Hat:enterprise_linux:3::desktop	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7
`squid-debuginfo` Red Hat:enterprise_linux:3::desktop	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7
`squid` Red Hat:enterprise_linux:3::es	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7
`squid-debuginfo` Red Hat:enterprise_linux:3::es	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7
`squid` Red Hat:enterprise_linux:3::ws	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7
`squid-debuginfo` Red Hat:enterprise_linux:3::ws	before 7:2.5.STABLE3-6.3E.7	7:2.5.STABLE3-6.3E.7

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2005-0097 is a medium vulnerability (CVSS 5.0) in Squid, published January 11, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 10.6%, the 95th percentile. Fixed in squid 2.5.7-4.

References

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