Medium severity6.5NVD Advisory· Published Jul 17, 2022· Updated Jun 17, 2026
CVE-2021-46784
CVE-2021-46784
Description
In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
41- osv-coords35 versionspkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/opensuse/squid&distro=openSUSE%20Leap%2015.4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/squid&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/opensuse/squid&distro=openSUSE%20Tumbleweedpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/squid&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/squid&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/squid&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/opensuse/squid&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/almalinux/libecappkg:rpm/almalinux/libecap-develpkg:rpm/almalinux/squidpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/squid&distro=SUSE%20Manager%20Proxy%204.1
< 4.17-4.24.1+ 34 more
- (no CPE)range: < 4.17-4.24.1
- (no CPE)range: < 5.6-150400.3.3.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 5.6-1.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 3.5.21-26.35.1
- (no CPE)range: < 4.17-4.24.1
- (no CPE)range: < 3.5.21-26.35.1
- (no CPE)range: < 3.5.21-26.35.1
- (no CPE)range: < 3.5.21-26.35.1
- (no CPE)range: < 3.5.21-26.35.1
- (no CPE)range: < 3.5.21-26.35.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 7:4.15-3.module_el8.6.0+3010+383bc947.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 5.6-150400.3.3.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
- (no CPE)range: < 4.17-150000.5.32.1
(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*range: >=3.0,<=3.5.28
Patches
Vulnerability mechanics
References
9- www.squid-cache.org/Versions/v5/changesets/SQUID-2021_7.patchnvdPatchVendor Advisory
- github.com/squid-cache/squid/commit/5e2ea2b13bd98f53e29964ca26bb0d602a8a12b9nvdPatchThird Party Advisory
- github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284wnvdMitigationPatchThird Party Advisory
- security-tracker.debian.org/tracker/CVE-2021-46784nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20221223-0007/nvdThird Party Advisory
- www.squid-cache.org/Versions/v4/changesets/SQUID-2021_7.patchnvdBroken Link
- www.openwall.com/lists/oss-security/2023/10/13/1nvd
- www.openwall.com/lists/oss-security/2023/10/13/10nvd
- www.openwall.com/lists/oss-security/2023/10/21/1nvd
News mentions
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