Bug 1276332 (CVE-2015-8789) - CVE-2015-8789 libebml: Use-after-free vulnerability in EblMaster::Read()
Summary: CVE-2015-8789 libebml: Use-after-free vulnerability in EblMaster::Read()
Alias: CVE-2015-8789
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
: CVE-2016-1515 (view as bug list)
Depends On: 1276336 1276337
TreeView+ depends on / blocked
Reported: 2015-10-29 13:32 UTC by Adam Mariš
Modified: 2019-09-29 13:39 UTC (History)
7 users (show)

Fixed In Version: libebml 1.3.3
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2018-03-28 21:12:35 UTC

Attachments (Terms of Use)

Description Adam Mariš 2015-10-29 13:32:20 UTC
When the parser encountered a deeply nested element with an infinite size then a following element of an upper level was not propagated correctly. Instead the element with the infinite size was added into the EBML element tree a second time resulting in memory access after freeing it and multiple attempts to free the same memory address during destruction.

Upstream patch:


Comment 1 Adam Mariš 2015-10-29 13:38:21 UTC
Created libebml tracking bugs for this issue:

Affects: fedora-all [bug 1276336]
Affects: epel-all [bug 1276337]

Comment 2 Andrej Nemec 2016-02-01 08:35:49 UTC
Added CVE according to http://www.cvedetails.com/cve/CVE-2015-8789/

Comment 3 Dominik 'Rathann' Mierzejewski 2017-01-13 10:13:56 UTC
*** Bug 1412632 has been marked as a duplicate of this bug. ***

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