Bug 1548126 (CVE-2018-1000099) - CVE-2018-1000099 asterisk: segmentation fault occurs in asterisk with an invalid SDP fmtp attribute
Summary: CVE-2018-1000099 asterisk: segmentation fault occurs in asterisk with an inva...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2018-1000099
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: 1548127 1548128
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-02-22 19:40 UTC by Laura Pardo
Modified: 2019-09-29 14:33 UTC (History)
4 users (show)

Fixed In Version: asterisk 13.19.2, asterisk 14.7.6, asterisk 15.2.2, Certified Asterisk 13.18
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Last Closed: 2019-06-08 03:40:56 UTC

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Description Laura Pardo 2018-02-22 19:40:16 UTC 
A flaw was discovered in Asterisk 13.x, 14.x, 15.x and 13.18. By crafting an SDP message body with an invalid fmtp attribute Asterisk crashes when using the pjsip channel driver because pjproject's fmtp retrieval function fails to check if fmtp value is empty (set empty if previously parsed as invalid).


References:
http://downloads.asterisk.org/pub/security/AST-2018-003.html
https://issues.asterisk.org/jira/browse/ASTERISK-27583

Patches:
http://downloads.asterisk.org/pub/security/AST-2018-003-13.diff [Asterisk 13]
http://downloads.asterisk.org/pub/security/AST-2018-003-14.diff [Asterisk 14]
http://downloads.asterisk.org/pub/security/AST-2018-003-15.diff [Asterisk 15]
http://downloads.asterisk.org/pub/security/AST-2018-003-13.18.diff [Certified Asterisk 13.18]
Comment 1 Laura Pardo 2018-02-22 19:40:51 UTC 
Created asterisk tracking bugs for this issue:

Affects: epel-6 [bug 1548128]
Affects: fedora-all [bug 1548127]
Comment 2 Product Security DevOps Team 2019-06-08 03:40:56 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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