Rapid7 Vulnerability & Exploit Database

Rocky Linux: CVE-2019-12529: squid-4 (RLSA-2020-4743)

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Rocky Linux: CVE-2019-12529: squid-4 (RLSA-2020-4743)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
07/11/2019
Created
03/13/2024
Added
03/12/2024
Modified
03/12/2024

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.

Solution(s)

  • rocky-upgrade-libecap
  • rocky-upgrade-libecap-debuginfo
  • rocky-upgrade-libecap-debugsource
  • rocky-upgrade-libecap-devel

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;