Bug 1369814

Summary: libksba: Unproportional amount of memory allocated when parsing crafted certificates
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dkholia, rdieter, tmraz
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2016-08-30 06:21:48 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 1369815    
Bug Blocks: 1369816    

Description Adam Mariš 2016-08-24 13:19:51 UTC
It was found that an unproportionate amount of memory is allocated when parsing crafted certificates in libskba, which may lead to DoS. Moreover in libksba 1.3.4, allocated memory is uninitialized and could potentially contain sensitive data left in freed memory block.

Public via:

http://seclists.org/oss-sec/2016/q3/343

Comment 1 Adam Mariš 2016-08-24 13:20:11 UTC
Created libksba tracking bugs for this issue:

Affects: fedora-all [bug 1369815]

Comment 4 Fedora Update System 2016-09-01 16:53:26 UTC
libksba-1.3.5-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2016-09-03 17:38:21 UTC
libksba-1.3.5-1.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2016-09-07 01:49:22 UTC
libksba-1.3.5-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.