National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-12529 Detail

Current Description

An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.9 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html
http://www.squid-cache.org/Versions/v4/changesets/ Vendor Advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-dd46b5417809647f561d8a5e0e74c3aacd235258.patch Patch Vendor Advisory
https://github.com/squid-cache/squid/commits/v4 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/
https://seclists.org/bugtraq/2019/Aug/42
https://usn.ubuntu.com/4065-1/
https://usn.ubuntu.com/4065-2/
https://www.debian.org/security/2019/dsa-4507

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Information Exposure 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)
2.0
Up to (including)
2.7
 cpe:2.3:a:squid-cache:squid:2.7.stable1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:squid-cache:squid:2.7.stable9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 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)
4.7


Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-12529
NVD Published Date:
07/11/2019
NVD Last Modified:
07/18/2019