National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-18676 Detail

Current Description

An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.squid-cache.org/Advisories/SQUID-2019_8.txt Third Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-fbbdf75efd7a5cc244b4886a9d42ea458c5a3a73.patch Patch
https://bugzilla.suse.com/show_bug.cgi?id=1156329 Issue Tracking Third Party Advisory
https://github.com/squid-cache/squid/pull/275 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/ Mailing List Third Party Advisory
https://usn.ubuntu.com/4213-1/ Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
3.0
Up to (including)
3.5.28
 cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
4.0
Up to (including)
4.8

Configuration 2 ( hide )
 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-18676
NVD Published Date:
11/26/2019
NVD Last Modified:
12/09/2019