CVE catalog
CVE-2023-46728
squid: CVE-2023-46728
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 5.96% · Oct 25, 2026
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | squid | sid | 7.7-1 | fixed |
| Debian | squid | forky | 7.7-1 | fixed |
| Debian | squid | trixie | 6.13-2+deb13u3 | fixed |
| Debian | squid | trixie-security | 6.13-2+deb13u2 | fixed |
| Debian | squid | bookworm | 5.7-2+deb12u5 | fixed |
| Debian | squid | bookworm-security | 5.7-2+deb12u6 | fixed |
| Ubuntu | squid3 | pro | 3.5.23-5ubuntu1 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.23-5ubuntu2 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.1 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.2 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.3 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.4 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.5 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.6 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.7 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.8 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.9 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.10 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.11 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.12 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.13 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.14 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.14+esm1 | fixed |
| Suse | squid | linux enterprise server 12 sp5 | 4.17-4.33.1 | fixed |
| Suse | squid | linux enterprise server for sap applications 12 sp5 | 4.17-4.33.1 | fixed |
| Ubuntu | squid3 | pro | 3.5.23-5ubuntu1 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.23-5ubuntu2 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.1 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.2 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.3 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.4 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.5 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.6 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.7 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.8 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.9 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.10 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.11 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.12 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.13 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.14 | vulnerable |
| Ubuntu | squid3 | pro | 3.5.27-1ubuntu1.14+esm1 | fixed |
| Ubuntu | squid | 20.04 | 4.8-1ubuntu2 | vulnerable |
| Ubuntu | squid | 20.04 | 4.8-1ubuntu3 | vulnerable |
| Ubuntu | squid | 20.04 | 4.9-2ubuntu1 | vulnerable |
| Ubuntu | squid | 20.04 | 4.9-2ubuntu2 | vulnerable |
| Ubuntu | squid | 20.04 | 4.9-2ubuntu3 | vulnerable |
| Ubuntu | squid | 20.04 | 4.9-2ubuntu4 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.1 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.2 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.3 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.4 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.5 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.6 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.7 | vulnerable |
| Ubuntu | squid | 20.04 | 4.10-1ubuntu1.8 | fixed |
| Ubuntu | squid | 22.04 | 4.13-10ubuntu5 | vulnerable |
| Ubuntu | squid | 22.04 | 5.2-1ubuntu1 | vulnerable |
| Ubuntu | squid | 22.04 | 5.2-1ubuntu3 | vulnerable |
| Ubuntu | squid | 22.04 | 5.2-1ubuntu4 | vulnerable |
| Ubuntu | squid | 22.04 | 5.2-1ubuntu4.1 | vulnerable |
| Ubuntu | squid | 22.04 | 5.2-1ubuntu4.2 | vulnerable |
| Ubuntu | squid | 22.04 | 5.2-1ubuntu4.3 | vulnerable |
| Ubuntu | squid | 22.04 | 5.7-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | squid | 22.04 | 5.7-0ubuntu0.22.04.2 | fixed |
| Suse | squid | linux enterprise high performance computing 15 sp1-ltss | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise high performance computing 15 sp2-ltss | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise high performance computing 15 sp3-espos | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise high performance computing 15 sp3-ltss | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise server 15 sp1-ltss | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise server 15 sp2-ltss | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise server 15 sp3-ltss | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise server for sap applications 15 sp1 | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise server for sap applications 15 sp2 | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise server for sap applications 15 sp3 | 4.17-150000.5.41.1 | fixed |
| Suse | squid | enterprise storage 7.1 | 4.17-150000.5.41.1 | fixed |
| Suse | squid | linux enterprise module for server applications 15 sp4 | 5.7-150400.3.15.1 | fixed |
| Suse | squid | linux enterprise module for server applications 15 sp5 | 5.7-150400.3.15.1 | fixed |
| Opensuse | squid | leap 15.4 | 5.7-150400.3.15.1 | fixed |
| Opensuse | squid | leap 15.5 | 5.7-150400.3.15.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | squid | source | sid | 6.1-1 | not yet assigned | Not reported | Not reported |
| Debian | squid | source | forky | 6.1-1 | not yet assigned | Not reported | Not reported |
| Debian | squid | source | trixie | 6.1-1 | not yet assigned | Not reported | Not reported |
| Debian | squid | source | bookworm | 5.7-2+deb12u5 | not yet assigned | Not reported | Not reported |
| Ubuntu | squid3 | deb | pro | 3.5.27-1ubuntu1.14+esm1 | Not reported | USN-6500-2 | Not reported |
| Suse | squid | rpm | linux enterprise server 12 sp5 | 4.17-4.33.1 | Not reported | SUSE-SU-2023:4545-1 | Not reported |
| Suse | squid | rpm | linux enterprise server for sap applications 12 sp5 | 4.17-4.33.1 | Not reported | SUSE-SU-2023:4545-1 | Not reported |
| Ubuntu | squid3 | deb | pro | 3.5.27-1ubuntu1.14+esm1 | Not reported | UBUNTU-CVE-2023-46728 | Not reported |
| Ubuntu | squid | deb | 20.04 | 4.10-1ubuntu1.8 | Not reported | UBUNTU-CVE-2023-46728 | Not reported |
| Ubuntu | squid | deb | 22.04 | 5.7-0ubuntu0.22.04.2 | Not reported | UBUNTU-CVE-2023-46728 | Not reported |
| Suse | squid | rpm | linux enterprise high performance computing 15 sp1-ltss | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise high performance computing 15 sp2-ltss | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise high performance computing 15 sp3-espos | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise high performance computing 15 sp3-ltss | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise server 15 sp1-ltss | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise server 15 sp2-ltss | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise server 15 sp3-ltss | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise server for sap applications 15 sp1 | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise server for sap applications 15 sp2 | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise server for sap applications 15 sp3 | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | enterprise storage 7.1 | 4.17-150000.5.41.1 | Not reported | SUSE-SU-2023:4589-1 | Not reported |
| Suse | squid | rpm | linux enterprise module for server applications 15 sp4 | 5.7-150400.3.15.1 | Not reported | SUSE-SU-2023:4544-1 | Not reported |
| Suse | squid | rpm | linux enterprise module for server applications 15 sp5 | 5.7-150400.3.15.1 | Not reported | SUSE-SU-2023:4544-1 | Not reported |
| Opensuse | squid | rpm | leap 15.4 | 5.7-150400.3.15.1 | Not reported | SUSE-SU-2023:4544-1 | Not reported |
| Opensuse | squid | rpm | leap 15.5 | 5.7-150400.3.15.1 | Not reported | SUSE-SU-2023:4544-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://access.redhat.com/errata/RHSA-2024:0046]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2024_0046.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-46728]
- [https://osv.dev/vulnerability/DLA-4312-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:4544-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:4545-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:4589-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-46728]
- [https://osv.dev/vulnerability/USN-6500-2]
- [https://security-tracker.debian.org/tracker/CVE-2023-46728]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1248.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]