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CVE-2019-18676

CVSS v3.1 7.5 (High)
75% Progress
CVSS v2.0 5 (Medium)
50% Progress
EPSS 1.78 % (88th)
1.78% Progress
Affected Products 4
Advisories 15
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.

Weaknesses
CWE-787
Out-of-bounds Write
CVE Status
PUBLISHED
CNA
MITRE
Published Date
2019-11-26 17:15:12
(4 years ago)
Updated Date
2023-11-07 03:06:53
(10 months ago)

Affected Products

Canonical

Debian

Fedoraproject

Squid-cache

Configuration #1

    CPE23 From Up To
  Squid-cache Squid from 3.0 version and 3.5.28 and prior versions cpe:2.3:a:squid-cache:squid >= 3.0 <= 3.5.28
  Squid-cache Squid from 4.0 version and 4.8 and prior versions cpe:2.3:a:squid-cache:squid >= 4.0 <= 4.8

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 19.04 cpe:2.3:o:canonical:ubuntu_linux:19.04
  Canonical Ubuntu Linux 19.10 cpe:2.3:o:canonical:ubuntu_linux:19.10

Configuration #3

    CPE23 From Up To
  Fedoraproject Fedora 30 cpe:2.3:o:fedoraproject:fedora:30
  Fedoraproject Fedora 31 cpe:2.3:o:fedoraproject:fedora:31

Configuration #4

    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 #5

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