Bug 1463132 - (CVE-2017-1000381) CVE-2017-1000381 c-ares: NAPTR parser out of bounds access
CVE-2017-1000381 c-ares: NAPTR parser out of bounds access
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170620,repor...
: Security
Depends On: 1463136 1470469 1463133 1463134 1463135 1463137
Blocks: 1463140
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Reported: 2017-06-20 04:36 EDT by Andrej Nemec
Modified: 2017-07-12 21:56 EDT (History)
39 users (show)

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Fixed In Version: c-ares 1.13.0
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Description Andrej Nemec 2017-06-20 04:36:59 EDT
The c-ares function `ares_parse_naptr_reply()`, which is used for parsing
NAPTR responses, could be triggered to read memory outside of the given input
buffer if the passed in DNS response packet was crafted in a particular way.

External References:

https://c-ares.haxx.se/adv_20170620.html
Comment 1 Andrej Nemec 2017-06-20 04:37:29 EDT
Acknowledgments:

Name: Daniel Stenberg
Upstream: LCatro
Comment 2 Andrej Nemec 2017-06-20 04:38:19 EDT
Created mingw-c-ares tracking bugs for this issue:

Affects: epel-7 [bug 1463133]
Affects: fedora-all [bug 1463135]


Created nodejs tracking bugs for this issue:

Affects: epel-all [bug 1463134]
Affects: fedora-all [bug 1463137]
Affects: openshift-1 [bug 1463136]
Comment 5 Stefan Cornelius 2017-07-04 04:24:44 EDT
Patch:
https://c-ares.haxx.se/CVE-2017-1000381.patch
Comment 6 Japheth Cleaver 2017-07-11 18:55:53 EDT
That's two CVE's (this and CVE-2016-5180 in #BZ1387961) applicable to c-ares in EL6. Will this patch be backported, or can the version be rebased?

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