Bug 1503537 (CVE-2017-5130) - CVE-2017-5130 chromium-browser: heap overflow in libxml2
Summary: CVE-2017-5130 chromium-browser: heap overflow in libxml2
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-5130
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1503551 1503557 1503558
Blocks: 1504612
TreeView+ depends on / blocked
 
Reported: 2017-10-18 11:41 UTC by Martin Prpič
Modified: 2021-02-17 01:21 UTC (History)
29 users (show)

Fixed In Version: chromium-browser 62.0.3202.62
Doc Type: If docs needed, set a value
Doc Text:
A heap overflow flaw was found in the libxml2 library. An application compiled with libxml2 using the vulnerable debug-only function xmlMemoryStrdup could be used by an attacker to crash the application or execute arbitrary code with the permission of the user running the application.
Clone Of:
Environment:
Last Closed: 2017-10-30 05:48:50 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2997 0 normal SHIPPED_LIVE Important: chromium-browser security update 2017-10-20 12:39:11 UTC

Description Martin Prpič 2017-10-18 11:41:37 UTC 
A heap overflow flaw was found in the libxml2 component of the Chromium browser.

Upstream bug(s):

https://code.google.com/p/chromium/issues/detail?id=722079

External References:

https://chromereleases.googleblog.com/2017/10/stable-channel-update-for-desktop.html
Comment 1 Martin Prpič 2017-10-18 11:44:31 UTC 
Created chromium tracking bugs for this issue:

Affects: fedora-all [bug 1503551]
Comment 4 errata-xmlrpc 2017-10-20 08:41:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6 Supplementary

Via RHSA-2017:2997 https://access.redhat.com/errata/RHSA-2017:2997
Comment 5 Huzaifa S. Sidhpurwala 2017-10-30 05:39:13 UTC 
The affected function xmlMemoryStrdup() is a debug-only function that should never be called in production builds. The only exception is xmllint when invoked with --maxmem. The same issue applies to

xmlMallocLoc
xmlReallocLoc

This issue is fixed via the following upstream commit:

https://git.gnome.org/browse/libxml2/commit/?id=897dffbae322b46b83f99a607d527058a72c51ed

Referenced at:

https://bugzilla.gnome.org/show_bug.cgi?id=783026 (currently private)
Comment 9 Eric Christensen 2019-06-28 13:31:04 UTC 
Statement:

This issue does not affect the libxml library shipped with Red Hat Enterprise Linux because the affected code xmlMemoryStrdup() is a debug-only function that should never be called in production builds. The only exception is xmllint when invoked with --maxmem. The same issue applies to the other two affected functions namely xmlMallocLoc and xmlReallocLoc.
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