Bug 1625055 (CVE-2018-16403) - CVE-2018-16403 elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and libwd/dwarf_hasattr.c causes crash
Summary: CVE-2018-16403 elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-16403
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: 1625056 1625057 1625418 1625419 1625420
Blocks: 1625054
TreeView+ depends on / blocked
 
Reported: 2018-09-04 04:45 UTC by Sam Fowler
Modified: 2019-09-29 14:57 UTC (History)
23 users (show)

Fixed In Version:
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Last Closed: 2019-08-06 13:19:17 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:2197 0 None None None 2019-08-06 12:27:06 UTC

Description Sam Fowler 2018-09-04 04:45:51 UTC 
Elfutils through version 0.173 is vulnerable to a heap-based buffer over-read due to incorrect checks for the end of attribute lists in the libdw/dwarf_getabbrev.c:__libdw_getabbrev() and libdw/dwarf_hasattr.c:dwarf_hasattr() functions. An attacker could exploit this to cause a crash via a crafted ELF.


Upstream Bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=23529


Upstream Patch:

https://sourceware.org/git/?p=elfutils.git;a=patch;h=6983e59b727458a6c64d9659c85f08218bc4fcda
Comment 1 Sam Fowler 2018-09-04 04:46:40 UTC 
Created elfutils tracking bugs for this issue:

Affects: fedora-all [bug 1625056]
Comment 6 errata-xmlrpc 2019-08-06 12:27:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2197 https://access.redhat.com/errata/RHSA-2019:2197
Comment 7 Product Security DevOps Team 2019-08-06 13:19:17 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-16403
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