Bug 1383297 (CVE-2016-6323) - CVE-2016-6323 glibc: Missing unwind info in __startcontext causes infinite loop in _Unwind_Backtrace
Summary: CVE-2016-6323 glibc: Missing unwind info in __startcontext causes infinite lo...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-6323
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: 1383298 1383311
Blocks: 1383299
TreeView+ depends on / blocked
 
Reported: 2016-10-10 11:36 UTC by Adam Mariš
Modified: 2019-09-29 13:57 UTC (History)
13 users (show)

Fixed In Version: glibc 2.25
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Environment:
Last Closed: 2016-10-10 11:57:17 UTC


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Description Adam Mariš 2016-10-10 11:36:07 UTC
Missing unwind info in __startcontext was found that can lead to infinite loop in _Unwind_Backtrace. Generating stack trace in application code compiled with gccgo can trigger this, causing the affected process hanging up instead of error message.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=20435

Comment 1 Adam Mariš 2016-10-10 11:36:40 UTC
Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1383298]

Comment 2 Adam Mariš 2016-10-10 11:57:17 UTC
Affects only ARM EABI (32-bit) platforms.

Comment 3 Adam Mariš 2016-10-10 11:59:47 UTC
Created glibc-arm-linux-gnu tracking bugs for this issue:

Affects: fedora-all [bug 1383311]


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