CVE-2024-23638
SQUID-2023:11 Denial of Service in Cache Manager
02 Description
SQUID-2023:11 Denial of Service in Cache Manager
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 60.05% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 99.0% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-01-23 23:23Z2 YR AGO
- Last updated
- 2025-06-17 21:19Z1 YR AGO
- Reserved
- 2024-01-19
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- Data version
- 5.1
- Document digest
- 6083f5178178739c73e71607efb1c2f2697e3927ee41ce72eeb5c8114e06ea98
05 Affected products
06 References
- github.comhttps://github.com/squid-cache/squid/security/advisories/GHSA-j49p-553x-48rx
- github.comhttps://github.com/squid-cache/squid/commit/290ae202883ac28a48867079c2fb34c40efd382b
- github.comhttps://github.com/squid-cache/squid/commit/e8118a7381213f5cfcdeb4cec1d2d854bfd261c8
- megamansec.github.iohttps://megamansec.github.io/Squid-Security-Audit/stream-assert.html
- www.squid-cache.orghttp://www.squid-cache.org/Versions/v5/SQUID-2023_11.patch
- www.squid-cache.orghttp://www.squid-cache.org/Versions/v6/SQUID-2023_11.patch
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20240208-0010/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/
07 Fixed in
AlmaLinux 8
- libecap Fixed
A version is affected if any line below covers it.
- Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
- Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
- libecap-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
- Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
- squid Fixed in 7:4.15-10.module_el8.10.0+3916+ed00a4a0.3
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- squid Fixed in 7:5.5-13.el9_4
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- libecap Fixed
A version is affected if any line below covers it.
- Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
- Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
- libecap-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
- Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
- squid Fixed in 7:4.15-10.module_el8.10.0+3916+ed00a4a0.3
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- squid Fixed in 7:5.5-13.el9_4
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- squid Fixed in 5.7-2+deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- squid Fixed in 6.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- squid Fixed in 6.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- squid Fixed in 4.10-1ubuntu1.10
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- squid Fixed in 5.7-0ubuntu0.22.04.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- squid3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- squid3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.