Bug 1934558

Summary: squid: out-of-bounds read in WCCP protocol
Product: [Other] Security Response Reporter: Michael Kaplan <mkaplan>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED DUPLICATE QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: anon.amish, code, jonathansteffan, luhliari, mcascell
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Clone Of: Environment:
Last Closed: 2021-03-19 09:41:25 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1934559, 1934560    
Bug Blocks: 1934571    

Description Michael Kaplan 2021-03-03 13:39:19 UTC
The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the "nobody" user.

Comment 2 Michael Kaplan 2021-03-03 13:40:03 UTC
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1934559]

Comment 4 Mauro Matteo Cascella 2021-03-08 15:37:21 UTC
External References:

https://www.zerodayinitiative.com/advisories/ZDI-21-157/

Comment 5 Mauro Matteo Cascella 2021-03-19 09:41:25 UTC

*** This bug has been marked as a duplicate of bug 1939939 ***