CVEvulnerability
CVE-2020-24606
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-08-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.1 HIGH — AV:N/AC:M/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-667
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.
Affected configurations
• squid-cache squid (>= 3.0 < 4.13)
• squid-cache squid (>= 5.0.1 < 5.0.4)
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 20.04
• debian debian linux 9.0
• debian debian linux 10.0
• fedoraproject fedora 31
• fedoraproject fedora 32
• fedoraproject fedora 33
• opensuse leap 15.1
• opensuse leap 15.2
Related
Weakness · CWE (1)
- CWE-667 Improper Locking weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch Patch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210219-0007/ Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210226-0006/ Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210226-0007/ Broken Link
- https://usn.ubuntu.com/4477-1/ Third Party Advisory
- https://usn.ubuntu.com/4551-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4751 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch Patch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210219-0007/ Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210226-0006/ Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210226-0007/ Broken Link
- https://usn.ubuntu.com/4477-1/ Third Party Advisory
- https://usn.ubuntu.com/4551-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4751 Third Party Advisory