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Vulnerability Details : CVE-2019-12527

An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.
Publish Date : 2019-07-11 Last Update Date : 2019-07-18
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:2593: squid:4 security update (Important) oval:com.redhat.rhsa:def:20192593 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2019-12527

# Product Type Vendor Product Version Update Edition Language
1 Application Squid-cache Squid 4.0.23 Version Details Vulnerabilities
2 Application Squid-cache Squid 4.0.24 Version Details Vulnerabilities
3 Application Squid-cache Squid 4.0.25 Version Details Vulnerabilities
4 Application Squid-cache Squid 4.6 Version Details Vulnerabilities
5 Application Squid-cache Squid 4.7 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Squid-cache Squid 5

- References For CVE-2019-12527

http://www.squid-cache.org/Versions/v4/changesets/ CONFIRM
https://usn.ubuntu.com/4065-1/
UBUNTU USN-4065-1
https://github.com/squid-cache/squid/commits/v4 CONFIRM
http://www.securityfocus.com/bid/109143
BID 109143 Squid CVE-2019-12527 Heap Buffer Overflow Vulnerability Release Date:2019-07-11
http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch CONFIRM

- Metasploit Modules Related To CVE-2019-12527

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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