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CVE-2020-11945 Details

Description

An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html	CVE	Mailing ListThird Party Advisory
http://master.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch	CVE	Vendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1170313	CVE	Issue TrackingThird Party Advisory
https://github.com/squid-cache/squid/commit/eeebf0f37a72a2de08348e85ae34b02c34e9a811	CVE	PatchThird Party Advisory
https://github.com/squid-cache/squid/pull/585	CVE	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html	CVE	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4FWQRYZJPHAZBLXJ56FPCHJN5X2FP3VA/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H4MWXEZAJSOGRJSS2JCJK4WBSND4IV46/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RV2VZWFJNO3B56IVN56HHKJASG5DYUIX/	CVE
https://security.gentoo.org/glsa/202005-05	CVE	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210304-0004/	CVE	Third Party Advisory
https://usn.ubuntu.com/4356-1/	CVE	Third Party Advisory
https://www.debian.org/security/2020/dsa-4682	CVE	Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/04/23/2	CVE	Mailing ListThird Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch	CVE	PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html	[email protected]	Mailing ListThird Party Advisory
http://master.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch	[email protected]	Vendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1170313	[email protected]	Issue TrackingThird Party Advisory
https://github.com/squid-cache/squid/commit/eeebf0f37a72a2de08348e85ae34b02c34e9a811	[email protected]	PatchThird Party Advisory
https://github.com/squid-cache/squid/pull/585	[email protected]	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html	[email protected]	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4FWQRYZJPHAZBLXJ56FPCHJN5X2FP3VA/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H4MWXEZAJSOGRJSS2JCJK4WBSND4IV46/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RV2VZWFJNO3B56IVN56HHKJASG5DYUIX/	[email protected]
https://security.gentoo.org/glsa/202005-05	[email protected]	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210304-0004/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/4356-1/	[email protected]	Third Party Advisory
https://www.debian.org/security/2020/dsa-4682	[email protected]	Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/04/23/2	[email protected]	Mailing ListThird Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch	[email protected]	PatchVendor Advisory

see all 30 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-190	Integer Overflow or Wraparound	[email protected]

Affected Products

Product	Versions
squid-cache squid	>= 3.0, <= 3.5.28 >= 4.0, < 4.11 >= 5.0, < 5.0.2
CPE cpe:2.3:a:squid-cache:squid:::::::: Remediation No remediation found in references.
debian debian linux	9.0 10.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* cpe:2.3:o:debian:debian_linux:10.0:::::::* Remediation No remediation found in references.
opensuse leap	15.1
CPE cpe:2.3:o:opensuse:leap:15.1:::::::* Remediation No remediation found in references.
fedoraproject fedora	30 31 32
CPE cpe:2.3:o:fedoraproject:fedora:30:::::::* cpe:2.3:o:fedoraproject:fedora:31:::::::* cpe:2.3:o:fedoraproject:fedora:32:::::::* Remediation No remediation found in references.
canonical ubuntu linux	16.04 18.04 19.10 20.04
CPE cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::* cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts::: Remediation No remediation found in references.

Change History

14 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Mar 17, 2021	Modified Analysis	[email protected]
Mar 4, 2021	CVE Modified	[email protected]
Jul 11, 2020	CVE Modified	[email protected]
May 19, 2020	CVE Modified	[email protected]
May 16, 2020	CVE Modified	[email protected]
May 16, 2020	CVE Modified	[email protected]
May 13, 2020	CVE Modified	[email protected]
May 11, 2020	CVE Modified	[email protected]
May 9, 2020	CVE Modified	[email protected]
Apr 30, 2020	Initial Analysis	[email protected]

CVE-2020-11945 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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