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CVE-2021-28652 Details

Description

An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.9 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://bugs.squid-cache.org/show_bug.cgi?id=5106 CVEExploitIssue TrackingVendor Advisory
http://seclists.org/fulldisclosure/2023/Oct/14 CVEMailing ListThird Party Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-m47m-9hvw-7447 CVEPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html CVEMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/ CVE

see all 16 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-401Missing Release of Memory after Effective Lifetime[email protected]

Affected Products

ProductVersions
squid-cache squid
>= 1.0, < 4.15
>= 5.0, < 5.0.6

CPE

  • cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
9.0
10.0

CPE

  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
33
34

CPE

  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

12 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-28652
NVD Published Date:
May 27, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-28652 Details - Not Deferred