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Bug 1269351 - (CVE-2015-7182) CVE-2015-7182 nss: ASN.1 decoder heap overflow when decoding constructed OCTET STRING that mixes indefinite and definite length encodings (MFSA 2015-133)
CVE-2015-7182 nss: ASN.1 decoder heap overflow when decoding constructed OCTE...
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=20151103,repor...
: Security
Depends On: 1269354 1269355 1269356 1269357 1269358 1269382 1269383 1269384 1269385
Blocks: 1269376
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Reported: 2015-10-07 01:59 EDT by Huzaifa S. Sidhpurwala
Modified: 2016-01-20 10:03 EST (History)
5 users (show)

See Also:
Fixed In Version: nss 3.19.2.1, nss 3.19.4, nss 3.20.1
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 cause NSS to crash or execute arbitrary code with the permissions of the user running an application compiled against the NSS library.
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Environment:
Last Closed: 2015-11-18 01:56:19 EST
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1980 normal SHIPPED_LIVE Critical: nss and nspr security update 2015-11-04 07:11:55 EST
Red Hat Product Errata RHSA-2015:1981 normal SHIPPED_LIVE Critical: nss, nss-util, and nspr security update 2015-11-04 12:48:55 EST
Red Hat Product Errata RHSA-2015:2068 normal SHIPPED_LIVE Critical: nss, nss-util, and nspr security update 2015-11-18 06:28:24 EST

  None (edit)
Description Huzaifa S. Sidhpurwala 2015-10-07 01:59:14 EDT 
Mozilla engineers David Keeler reported a buffer overflow in the ASN.1 decoder in Network Security Services (NSS). These issues were in octet string parsing and were found through fuzzing and code inspection. If these issues were exploited, they would lead to a potentially exploitable crash.

These issues were fixed in NSS version 3.19.2.1 and 3.19.4, shipped in Firefox and Firefox ESR, respectively, as well as NSS 3.20.1.

Upstream bug:

https://bugzilla.mozilla.org/show_bug.cgi?id=1202868

External Reference:

https://www.mozilla.org/security/announce/2015/mfsa2015-133.html
https://access.redhat.com/articles/2043623

Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges David Keeler as the original reporter.
Comment 5 errata-xmlrpc 2015-11-04 02:12:18 EST 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5

Via RHSA-2015:1980 https://rhn.redhat.com/errata/RHSA-2015-1980.html
Comment 6 errata-xmlrpc 2015-11-04 07:49:39 EST 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2015:1981 https://rhn.redhat.com/errata/RHSA-2015-1981.html
Comment 7 errata-xmlrpc 2015-11-18 01:28:51 EST 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.5 EUS - Server and Compute Node Only
  Red Hat Enterprise Linux 6.6 EUS - Server and Compute Node Only
  Red Hat Enterprise Linux 6.2 AUS
  Red Hat Enterprise Linux 6.4 AUS - Server Only

Via RHSA-2015:2068 https://rhn.redhat.com/errata/RHSA-2015-2068.html
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