8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.2 High
AI Score
Confidence
Low
0.005 Low
EPSS
Percentile
75.3%
Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug
in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions
6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack
against HTTP Request parsing. This problem allows a remote client to
perform Denial of Service attack by sending a large X-Forwarded-For header
when the follow_x_forwarded_for feature is configured. This bug is fixed by
Squid version 6.6. In addition, patches addressing this problem for the
stable releases can be found in Squid’s patch archives.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | squid | < 4.10-1ubuntu1.9 | UNKNOWN |
ubuntu | 22.04 | noarch | squid | < 5.7-0ubuntu0.22.04.3 | UNKNOWN |
ubuntu | 23.04 | noarch | squid | < 5.7-1ubuntu3.2 | UNKNOWN |
ubuntu | 23.10 | noarch | squid | < 6.1-2ubuntu1.2 | UNKNOWN |
ubuntu | 24.04 | noarch | squid | < 6.5-1ubuntu3 | UNKNOWN |
ubuntu | 18.04 | noarch | squid3 | < 3.5.27-1ubuntu1.14+esm2 | UNKNOWN |
ubuntu | 16.04 | noarch | squid3 | < 3.5.12-1ubuntu7.16+esm3 | UNKNOWN |
github.com/squid-cache/squid/security/advisories/GHSA-wgq4-4cfg-c4x3
launchpad.net/bugs/cve/CVE-2023-50269
nvd.nist.gov/vuln/detail/CVE-2023-50269
security-tracker.debian.org/tracker/CVE-2023-50269
ubuntu.com/security/notices/USN-6594-1
ubuntu.com/security/notices/USN-6857-1
www.cve.org/CVERecord?id=CVE-2023-50269
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.2 High
AI Score
Confidence
Low
0.005 Low
EPSS
Percentile
75.3%