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CVE-2020-24606

CVSS v3.1 7.5 (High)
75% Progress
CVSS v2.0 7.1 (High)
71% Progress
EPSS 1.45 % (87th)
1.45% Progress
Affected Products 5
Advisories 19
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-667
Improper Locking
CVE Status
PUBLISHED
CNA
MITRE
Published Date
2020-08-24 18:15:10
(4 years ago)
Updated Date
2023-11-07 03:20:08
(10 months ago)

Affected Products

Canonical

Debian

Fedoraproject

Opensuse

Squid-cache

Configuration #1

    CPE23 From Up To
  Squid-cache Squid from 3.0 version and prior 4.13 version cpe:2.3:a:squid-cache:squid >= 3.0 < 4.13
  Squid-cache Squid from 5.0.1 version and prior 5.0.4 version cpe:2.3:a:squid-cache:squid >= 5.0.1 < 5.0.4

Configuration #2

    CPE23 From Up To
  Canonical Ubuntu Linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts
  Canonical Ubuntu Linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts
  Canonical Ubuntu Linux 20.04 cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts

Configuration #3

    CPE23 From Up To
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0

Configuration #4

    CPE23 From Up To
  Fedoraproject Fedora 31 cpe:2.3:o:fedoraproject:fedora:31
  Fedoraproject Fedora 32 cpe:2.3:o:fedoraproject:fedora:32
  Fedoraproject Fedora 33 cpe:2.3:o:fedoraproject:fedora:33

Configuration #5

    CPE23 From Up To
  Opensuse Leap 15.1 cpe:2.3:o:opensuse:leap:15.1
  Opensuse Leap 15.2 cpe:2.3:o:opensuse:leap:15.2