Vulnerability Report

CVE-2020-14059

Title: Squid-Cache Squid Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2020-14059.

CWE Category CWE-662
Published Date Jun 30, 2020
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 6.5 CVSS v3.1
Exploit Probability (EPSS)
4.41%

Vulnerability Summary

CVE-2020-14059: 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.

Impacted Vendors

S
squid 1
S
squid-cache 1

Reference Links

http://www.squid-cache.org/Advisories/SQUID-2020_5.txt http://www.squid-cache.org/Versions/v5/changesets/squid-5-7a5af8db8e0377c06ed9ffbdcb1334389c7cd8ab.patch https://security.netapp.com/advisory/ntap-20210312-0001/ http://www.squid-cache.org/Advisories/SQUID-2020_5.txt http://www.squid-cache.org/Versions/v5/changesets/squid-5-7a5af8db8e0377c06ed9ffbdcb1334389c7cd8ab.patch https://security.netapp.com/advisory/ntap-20210312-0001/
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:S/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-14059 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.