CVE Vulnerability

CVE-2020-24606

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.

7.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
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://www.debian.org/security/2020/dsa-4751 Third Party Advisory
https://usn.ubuntu.com/4477-1/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/ 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
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/ Third Party Advisory
https://usn.ubuntu.com/4551-1/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html Mailing List Third Party Advisory
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
Configurations

Configuration 1

cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
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:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
Information

Published : 2020-08-24 06:15

Updated : 2021-07-21 11:39

NVD link : CVE-2020-24606

Mitre link : CVE-2020-24606

Products Affected
No products.
CWE
CWE-667