CVE-2020-14059: squid-cache squid Improper Synchronization
CVSS: 6.5v3.1MediumModified
AliasesSUSE-SU-2020:1769-1SUSE-SU-2020:1770-1openSUSE-SU-2020:0910-1openSUSE-SU-2020:0914-1
Published 30-06-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-14059 is a medium (CVSS 6.5) Improper Synchronization vulnerability in squid-cache squid. EPSS estimates a 4.41% chance of exploitation in the next 30 days, higher than 91.2% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
4.41%
0%100%
Low · 0.00 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
- 30-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in Squid 5.x before 5.0.3. Due to an Incorrect Synchronization, a Denial of Service can occur when processing objects in an SMP cache because of an Ipc::Mem::PageStack::pop ABA problem during access to the memory page/slot management list.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
4.41%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.41% on 18-09-2026
18-09-202618-10-2026
EPSS score4.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse8 products
- squid&distro=SUSE Linux Enterprise High Performance Computing 15-ESPOS< 4.12-5.20.1
- squid&distro=SUSE Linux Enterprise High Performance Computing 15-LTSS< 4.12-5.20.1
- squid&distro=SUSE Linux Enterprise Module for Server Applications 15 SP1< 4.12-5.20.1
- squid&distro=SUSE Linux Enterprise Module for Server Applications 15 SP2< 4.12-5.20.1
- squid&distro=SUSE Linux Enterprise Server 12 SP5< 4.12-4.12.1
Opensuse2 products
- squid&distro=openSUSE Leap 15.1< 4.12-lp151.2.21.1
- squid&distro=openSUSE Leap 15.2< 4.12-lp152.2.3.1
Squid-cache1 product
- squid≥ 5.0, < 5.0.3
3 vendors · 11 products
References
9 links- www.squid-cache.org/Versions/v5/changesets/squid-5-7a5af8db8e0377c06ed9ffbdcb1334389c7cd8ab.patchX Refsource MISCPatchVendor Advisory
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory