CVE-2020-24606

CVSS V2 High 7.1 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2020-24606
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-08-24T18:15:10
  • Last Modified Date
  • 2021-07-21T11:39:23
Weakness Enumerations
CWE URL
CWE-667 http://cwe.mitre.org/data/definitions/667.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* 1 OR 3.0 4.13
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* 1 OR 5.0.1 5.0.4
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.1
  • Severity
  • HIGH
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-24606
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24606
History
Created Old Value New Value Data Type Notes
2022-05-10 07:03:53 Added to TrackCVE
2022-12-04 21:27:26 2020-08-24T18:15Z 2020-08-24T18:15:10 CVE Published Date updated
2022-12-04 21:27:26 2021-07-21T11:39:23 CVE Modified Date updated
2022-12-04 21:27:26 Analyzed Vulnerability Status updated