CVE-2021-46784: debian debian_linux Reachable Assertion
CVSS: 6.5v3.1MediumModified
AliasesMGASA-2022-0249SUSE-SU-2022:2359-1RHSA-2022:5526RHSA-2022:5527RHSA-2022:5528RHSA-2022:5529RHSA-2022:5530RHSA-2022:5542UBUNTU-CVE-2021-46784USN-5491-1DEBIAN-CVE-2021-46784openSUSE-SU-2024:12157-1
Published 17-07-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-46784 is a medium (CVSS 6.5) Reachable Assertion vulnerability in debian debian_linux. EPSS estimates a 5.13% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
5.13%
0%100%
Low · +0.28 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 17-07-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSources4 sources · 6.5–7.5
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
5.13%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
+0.28 pp
From 4.84% on 20-09-2026
20-09-202620-10-2026
EPSS score5.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat9 products
- libecap< 0:1.0.1-2.module+el8.1.0+4044+36416a77
- libecap-debuginfo< 0:1.0.1-2.module+el8.1.0+4044+36416a77
- libecap-debugsource< 0:1.0.1-2.module+el8.1.0+4044+36416a77
- libecap-devel< 0:1.0.1-2.module+el8.1.0+4044+36416a77
- squid< 7:4.15-3.module+el8.6.0+15801+8fa20c64.1 | < 7:5.2-1.el9_0.1 | < 7:4.11-4.module+el8.4.0+15802+77c2cdda.3 | < 7:4.4-8.module+el8.2.0+15803+1b4cda03.4 | < 7:4.4-8.module+el8.1.0+15805+9a5539dc.4 | < 7:3.5.20-17.el7_9.7
Debian2 products
- squid< 5.6-1
- debian_linuxEOL10.0 | 11.0 | 12.0
Opensuse2 products
- squid&distro=openSUSE Leap 15.4< 5.6-150400.3.3.1
- squid&distro=openSUSE Tumbleweed< 5.6-1.1
Ubuntu2 products
- squid< 4.10-1ubuntu1.6 | < 5.2-1ubuntu4.1
- squid3All versions (No fix recorded) | < 3.5.27-1ubuntu1.13
Mageia1 product
- squid< 4.17-1.1.mga8
Squid-cache1 product
- squid≥ 3.0, ≤ 3.5.28 | ≥ 4.0, ≤ 4.17 | ≥ 5.0, < 5.6
Suse1 product
- squid&distro=SUSE Linux Enterprise Module for Server Applications 15 SP4< 5.6-150400.3.3.1
7 vendors · 18 products
References
33 links- github.com/squid-cache/squid/commit/5e2ea2b13bd98f53e29964ca26bb0d602a8a12b9PatchThird Party Advisory
- github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284wAdvisoryARTICLEREPORTMitigationPatchThird Party Advisory
- security.netapp.com/advisory/ntap-20221223-0007/Third Party Advisory
- www.openwall.com/lists/oss-security/2023/10/13/1Mailing List
- www.openwall.com/lists/oss-security/2023/10/21/1Mailing List