CVE-2023-46728
SQUID-2021:8 Denial of Service in Gopher gateway
02 Description
SQUID-2021:8 Denial of Service in Gopher gateway
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 5.95% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 93.1% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/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
- Important. 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
- 2023-11-06 17:13Z2 YR AGO
- Last updated
- 2025-11-03 18:08Z11 MO AGO
- Reserved
- 2023-10-25
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.2
- Document digest
- 715751859ec94f11e9f124d9aa87fa8f9708975260032a0599b97b5e7c661ea0
05 Affected products
06 References
- github.comhttps://github.com/squid-cache/squid/security/advisories/GHSA-cg5h-v6vc-w33f
- github.comhttps://github.com/squid-cache/squid/commit/6ea12e8fb590ac6959e9356a81aa3370576568c3
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20231214-0006/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/09/msg00027.html
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 7:4.15-7.module_el8.9.0+3708+6acaac63.5
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 7:5.5-6.el9_3.5
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 7:4.15-7.module_el8.9.0+3708+6acaac63.5
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 7:5.5-6.el9_3.5
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+deb12u5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- squid Fixed in 6.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- squid Fixed in 6.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- squid Fixed in 4.10-1ubuntu1.8
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 5.7-0ubuntu0.22.04.2
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 Fixed in 3.5.12-1ubuntu7.16+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
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 Fixed in 3.5.27-1ubuntu1.14+esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
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.