Bug 1722730 (CVE-2019-12802) - CVE-2019-12802 radare2: denial of service in function rcc_context in /libr/egg/egg_lang.c
Summary: CVE-2019-12802 radare2: denial of service in function rcc_context in /libr/eg...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-12802
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: 1722733 1722736
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-06-21 06:43 UTC by Dhananjay Arunesh
Modified: 2019-09-29 15:15 UTC (History)
2 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2019-07-12 13:07:59 UTC


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Description Dhananjay Arunesh 2019-06-21 06:43:24 UTC
In radare2 through 3.5.1, the rcc_context function of libr/egg/egg_lang.c mishandles changing context. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact (invalid memory access in r_egg_lang_parsechar; invalid free in rcc_pusharg).

Reference:
https://github.com/radare/radare2/issues/14296

Comment 1 Dhananjay Arunesh 2019-06-21 06:46:05 UTC
Created radare2 tracking bugs for this issue:

Affects: fedora-all [bug 1722733]

Comment 2 Dhananjay Arunesh 2019-06-21 06:54:26 UTC
Created radare2 tracking bugs for this issue:

Affects: epel-7 [bug 1722736]

Comment 3 Riccardo Schirone 2019-06-21 07:43:41 UTC
Upstream patch:
https://github.com/radare/radare2/commit/93af319e0af787ede96537d46210369f5c24240c

Comment 4 Product Security DevOps Team 2019-07-12 13:07:59 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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