Vulnerability DatabaseCVE-2020-24606
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CVE-2020-24606
August 24, 2020
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.
Related Resources (21)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/
https://security.netapp.com/advisory/ntap-20210219-0007/
https://security.alpinelinux.org/vuln/CVE-2020-24606
https://access.redhat.com/security/cve/CVE-2020-24606
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/
https://usn.ubuntu.com/4477-1/
https://usn.ubuntu.com/4551-1/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/
https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg
https://security.netapp.com/advisory/ntap-20210226-0007/
https://security.netapp.com/advisory/ntap-20210226-0006/
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html
https://security-tracker.debian.org/tracker/CVE-2020-24606
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-24606
https://www.debian.org/security/2020/dsa-4751
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/
https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html
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CVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.6
Attack Complexity
LOW
Attack Vector
NETWORK
Availability
HIGH
Confidentiality
NONE
Integrity
NONE
Privileges Required
NONE
Scope
CHANGED
User Interaction
NONE
CVSS v2
Base Score:
7.1
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
EPSS
Base Score:
6.34