Bug 1310509 - (CVE-2016-1950) CVE-2016-1950 nss: Heap buffer overflow vulnerability in ASN1 certificate parsing (MFSA 2016-35)
CVE-2016-1950 nss: Heap buffer overflow vulnerability in ASN1 certificate par...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
urgent Severity urgent
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Assigned To: Red Hat Product Security
impact=critical,public=20160308,repor...
: Security
Depends On: 1310512 1310513 1310514 1310515 1310516 1316002 1317443 1317444 1317445 1317446 1317448
Blocks: 1310521
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Reported: 2016-02-21 23:57 EST by Huzaifa S. Sidhpurwala
Modified: 2016-03-28 23:41 EDT (History)
10 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A heap-based buffer overflow flaw was found in the way NSS parsed certain ASN.1 structures. An attacker could use this flaw to create a specially crafted certificate which, when parsed by NSS, could cause it to crash, or execute arbitrary code, using the permissions of the user running an application compiled against the NSS library.
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Last Closed: 2016-03-28 23:41:57 EDT
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
upstream patch on top of nss 3.21, from nss 3.21.1 (4.13 KB, patch)
2016-02-22 11:12 EST, Kai Engert (:kaie)
no flags Details | Diff


External Trackers
Tracker ID Priority Status Summary Last Updated
Mozilla Foundation 1245528 None None None 2016-02-22 11:12 EST

  None (edit)
Description Huzaifa S. Sidhpurwala 2016-02-21 23:57:48 EST
A heap-based buffer overflow was found in the ASN.1 parsing code of NSS. A remote attacker could create a specially-crafted certificate, which when parsed by NSS, could the application linked with NSS to crash or potentially execute code with the permission of the user running such an application.

Applications such as web browsers which parse untrusted web content are specially vulnerable to this issue.
Comment 4 Kai Engert (:kaie) 2016-02-22 11:12 EST
Created attachment 1129399 [details]
upstream patch on top of nss 3.21, from nss 3.21.1
Comment 8 Huzaifa S. Sidhpurwala 2016-03-06 22:51:33 EST
Acknowledgements:

Name: the Mozilla project
Upstream: Francis Gabriel
Comment 9 Martin Prpič 2016-03-08 04:09:51 EST
External References:

https://www.mozilla.org/en-US/security/advisories/mfsa2016-35
Comment 10 errata-xmlrpc 2016-03-08 22:40:50 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5

Via RHSA-2016:0371 https://rhn.redhat.com/errata/RHSA-2016-0371.html
Comment 11 errata-xmlrpc 2016-03-08 22:54:54 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2016:0370 https://rhn.redhat.com/errata/RHSA-2016-0370.html
Comment 12 Huzaifa S. Sidhpurwala 2016-03-09 03:43:18 EST
Created nss-util tracking bugs for this issue:

Affects: fedora-all [bug 1316002]
Comment 15 errata-xmlrpc 2016-03-23 05:53:02 EDT
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.1 Extended Update Support
  Red Hat Enterprise Linux 6.2 Advanced Update Support
  Red Hat Enterprise Linux 6.4 Advanced Update Support
  Red Hat Enterprise Linux 6.5 Advanced Update Support
  Red Hat Enterprise Linux 6.6 Extended Update Support

Via RHSA-2016:0495 https://rhn.redhat.com/errata/RHSA-2016-0495.html

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