Bug 455031 - (CVE-2008-3196) CVE-2008-3196 byacc: Potential out of bounds of allocated stack access
CVE-2008-3196 byacc: Potential out of bounds of allocated stack access
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 454583 455702 455703 455704 455705 455706 455707 455708
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Reported: 2008-07-11 11:36 EDT by Jan Lieskovsky
Modified: 2015-02-17 10:27 EST (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2015-02-17 10:27:06 EST
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Description Jan Lieskovsky 2008-07-11 11:36:21 EDT
Description of problem:

Otto Moerbeck has reported the following potential out of bounds of the
allocated stack access in the yacc binary:

Fix an venerable bug: if we're reducing a rule that has an empty
right hand side and the yacc stackpointer is pointing at the very
end of the allocated stack, we end up accessing the stack out of
bounds by the implicit $$ = $1 action.  Detected by my new malloc,
experienced by sturm@ on sparc64; ok deraadt@

Public mention of this issue:


Proposed OpenBSD patch:

Comment 5 Vincent Danen 2015-02-17 10:27:06 EST

Red Hat Product Security has rated this issue as having Low 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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