Bug 1421996 (CVE-2017-5969) - CVE-2017-5969 libxml2: Null pointer dereference in xmlSaveDoc implementation
Summary: CVE-2017-5969 libxml2: Null pointer dereference in xmlSaveDoc implementation
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2017-5969
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1421997 1421998 1421999
Blocks: 1422003
TreeView+ depends on / blocked
 
Reported: 2017-02-14 09:54 UTC by Andrej Nemec
Modified: 2021-02-17 02:35 UTC (History)
11 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A NULL pointer dereference was discovered in libxml2, when using xmllint --recover. A maliciously crafted file, when parsed in recovery mode, could cause the application to crash.
Clone Of:
Environment:
Last Closed: 2017-03-23 06:02:17 UTC
Embargoed:

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Description Andrej Nemec 2017-02-14 09:54:53 UTC 
A vulnerability was found in libxml2. A maliciously crafted file could cause the application to crash, due to the xmlSaveDoc functionality not being safe.

References:

https://bugzilla.gnome.org/show_bug.cgi?id=778519
http://seclists.org/oss-sec/2017/q1/415
Comment 1 Andrej Nemec 2017-02-14 09:55:59 UTC 
Created libxml2 tracking bugs for this issue:

Affects: fedora-all [bug 1421998]


Created mingw-libxml2 tracking bugs for this issue:

Affects: epel-7 [bug 1421999]
Affects: fedora-all [bug 1421997]
Comment 2 Doran Moppert 2017-03-23 06:01:06 UTC 
Statement:

Recovery mode is not intended for use with untrusted input. Users invoking xmllint --recover may experience a crash, but applications processing documents from possibly malicious sources should not be exposed to this flaw.
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