Bug 1310699 (CVE-2016-2099) - CVE-2016-2099 xerces-c: Use-after-free in heap on specially crafted XML input
Summary: CVE-2016-2099 xerces-c: Use-after-free in heap on specially crafted XML input
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2016-2099
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1334686 1334687 1334688 1334689
Blocks: 1310741
TreeView+ depends on / blocked
 
Reported: 2016-02-22 14:35 UTC by Adam Mariš
Modified: 2021-02-17 04:19 UTC (History)
21 users (show)

Fixed In Version: xerces-c 3.2.0, xerces-c 3.1.4
Clone Of:
Environment:
Last Closed: 2017-07-04 12:29:24 UTC
Embargoed:

Attachments (Terms of Use)
Backtrace report (4.35 KB, text/plain)
2016-02-22 15:15 UTC, Adam Mariš 		no flags Details
Patch from upstream bug (682 bytes, patch)
2017-07-04 12:21 UTC, Stefan Cornelius 		no flags Details | Diff
View All

Description Adam Mariš 2016-02-22 14:35:39 UTC 
A use-after-free vulnerability in heap triggered by parsing specially crafted XML input was reported.
Comment 2 Adam Mariš 2016-02-22 15:15:45 UTC 
Created attachment 1129358 [details]
Backtrace report
Comment 3 Adam Mariš 2016-05-10 10:40:07 UTC 
Upstream bug:

https://issues.apache.org/jira/browse/XERCESC-2066

"The DTDScanner fails to account for the fact that peeking characters in the XMLReader class can raise an exception if an invalid character is encountered, and the exception crosses stack frames in an unsafe way that causes a higher level exception handler to access an already-freed object."
Comment 4 Adam Mariš 2016-05-10 10:41:23 UTC 
Created mingw-xerces-c tracking bugs for this issue:

Affects: fedora-all [bug 1334687]
Comment 5 Adam Mariš 2016-05-10 10:41:33 UTC 
Created xerces-c tracking bugs for this issue:

Affects: fedora-all [bug 1334686]
Affects: epel-6 [bug 1334689]
Comment 6 Adam Mariš 2016-05-10 10:41:43 UTC 
Created xerces-c27 tracking bugs for this issue:

Affects: fedora-all [bug 1334688]
Comment 7 Fedora Update System 2016-07-02 15:23:41 UTC 
xerces-c-3.1.4-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2016-07-05 04:57:41 UTC 
mingw-xerces-c-3.1.4-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2016-07-06 05:51:04 UTC 
mingw-xerces-c-3.1.4-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2016-07-06 05:51:52 UTC 
xerces-c-3.1.4-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 11 Fedora Update System 2016-07-06 05:54:30 UTC 
mingw-xerces-c-3.1.4-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 12 Fedora Update System 2016-07-06 05:55:12 UTC 
xerces-c-3.1.4-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 13 Stefan Cornelius 2017-07-04 12:21:43 UTC 
Created attachment 1294178 [details]
Patch from upstream bug
Comment 14 Stefan Cornelius 2017-07-04 12:29:37 UTC 
Acknowledgments:

Name: Gustavo Grieco
Comment 15 Stefan Cornelius 2017-07-04 12:29:47 UTC 
Statement:

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
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