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CVE-2020-24606 Details

Description

Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:8.6 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html	CVE	Mailing ListThird Party Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg	CVE	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html	CVE	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/	CVE
https://security.netapp.com/advisory/ntap-20210219-0007/	CVE	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210226-0006/	CVE	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210226-0007/	CVE	Broken Link
https://usn.ubuntu.com/4477-1/	CVE	Third Party Advisory
https://usn.ubuntu.com/4551-1/	CVE	Third Party Advisory
https://www.debian.org/security/2020/dsa-4751	CVE	Third Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch	CVE	PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html	[email protected]	Mailing ListThird Party Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg	[email protected]	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html	[email protected]	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/	[email protected]
https://security.netapp.com/advisory/ntap-20210219-0007/	[email protected]	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210226-0006/	[email protected]	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210226-0007/	[email protected]	Broken Link
https://usn.ubuntu.com/4477-1/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/4551-1/	[email protected]	Third Party Advisory
https://www.debian.org/security/2020/dsa-4751	[email protected]	Third Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch	[email protected]	PatchVendor Advisory

see all 28 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-667	Improper Locking	[email protected]

Affected Products

Product	Versions
squid-cache squid	>= 3.0, < 4.13 >= 5.0.1, < 5.0.4
CPE cpe:2.3:a:squid-cache:squid:::::::: Remediation No remediation found in references.
canonical ubuntu linux	16.04 18.04 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:20.04::::lts::: 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.
fedoraproject fedora	31 32 33
CPE cpe:2.3:o:fedoraproject:fedora:31:::::::* cpe:2.3:o:fedoraproject:fedora:32:::::::* cpe:2.3:o:fedoraproject:fedora:33:::::::* Remediation No remediation found in references.
opensuse leap	15.1 15.2
CPE cpe:2.3:o:opensuse:leap:15.1:::::::* cpe:2.3:o:opensuse:leap:15.2:::::::* Remediation No remediation found in references.

Change History

20 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]
Jul 21, 2021	CWE Remap	[email protected]
Mar 17, 2021	Modified Analysis	[email protected]
Feb 26, 2021	CVE Modified	[email protected]
Feb 23, 2021	Modified Analysis	[email protected]
Feb 19, 2021	CVE Modified	[email protected]
Oct 2, 2020	CVE Modified	[email protected]
Sep 30, 2020	CVE Modified	[email protected]
Sep 25, 2020	CVE Modified	[email protected]
Sep 7, 2020	CVE Modified	[email protected]
Sep 5, 2020	CVE Modified	[email protected]
Sep 3, 2020	CVE Modified	[email protected]
Sep 3, 2020	CVE Modified	[email protected]
Sep 3, 2020	Reanalysis	[email protected]
Sep 3, 2020	Initial Analysis	[email protected]
Sep 2, 2020	CVE Modified	[email protected]
Aug 27, 2020	CVE Modified	[email protected]

CVE-2020-24606 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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