Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2019-12525 First vendor Publication 2019-07-11
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12525

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 290
Os 4
Os 3
Os 1
Os 2

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
BUGTRAQ https://seclists.org/bugtraq/2019/Aug/42
CONFIRM http://www.squid-cache.org/Versions/v4/changesets/
http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882e...
https://github.com/squid-cache/squid/commits/v4
DEBIAN https://www.debian.org/security/2019/dsa-4507
MLIST https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html
UBUNTU https://usn.ubuntu.com/4065-1/
https://usn.ubuntu.com/4065-2/

Alert History

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2019-07-12 00:19:03
  • First insertion