Bug 1764440 (CVE-2019-11759) - CVE-2019-11759 Mozilla: Stack buffer overflow in HKDF output
Summary: CVE-2019-11759 Mozilla: Stack buffer overflow in HKDF output
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-11759
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: Engineering1763558 Engineering1763559 Engineering1763560 Engineering1763561 Engineering1763562 Engineering1763563 Engineering1764206 Engineering1764937 Engineering1764938 Engineering1764939 Engineering1764940 Engineering1764941 Engineering1764942
Blocks: Embargoed1763556
TreeView+ depends on / blocked
 
Reported: 2019-10-23 05:40 UTC by Doran Moppert
Modified: 2021-02-16 21:12 UTC (History)
5 users (show)

Fixed In Version: firefox 68.2, thunderbird 68.2
Doc Type: If docs needed, set a value
Doc Text:
A flaw was discovered in both Firefox and Thunderbird where 4 bytes of a HMAC output could be written past the end of a buffer stored on the memory stack. This could allow an attacker to execute arbitrary code or lead to a crash. This flaw can be exploited over the network.
Clone Of:
Environment:
Last Closed: 2019-10-25 00:51:33 UTC

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:3193 0 None None None 2019-10-23 14:00:45 UTC
Red Hat Product Errata RHSA-2019:3196 0 None None None 2019-10-24 08:24:47 UTC
Red Hat Product Errata RHSA-2019:3210 0 None None None 2019-10-29 09:49:07 UTC
Red Hat Product Errata RHSA-2019:3237 0 None None None 2019-10-29 13:47:02 UTC
Red Hat Product Errata RHSA-2019:3281 0 None None None 2019-10-31 14:08:14 UTC
Red Hat Product Errata RHSA-2019:3756 0 None None None 2019-11-06 17:08:18 UTC

Description Doran Moppert 2019-10-23 05:40:08 UTC 
An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11759
Comment 1 Doran Moppert 2019-10-23 05:40:11 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Guido Vranken
Comment 2 errata-xmlrpc 2019-10-23 14:00:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:3193 https://access.redhat.com/errata/RHSA-2019:3193
Comment 3 errata-xmlrpc 2019-10-24 08:24:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3196 https://access.redhat.com/errata/RHSA-2019:3196
Comment 4 Product Security DevOps Team 2019-10-25 00:51:33 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-2019-11759
Comment 5 errata-xmlrpc 2019-10-29 09:49:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:3210 https://access.redhat.com/errata/RHSA-2019:3210
Comment 6 errata-xmlrpc 2019-10-29 13:47:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3237 https://access.redhat.com/errata/RHSA-2019:3237
Comment 7 errata-xmlrpc 2019-10-31 14:08:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:3281 https://access.redhat.com/errata/RHSA-2019:3281
Comment 8 errata-xmlrpc 2019-11-06 17:08:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:3756 https://access.redhat.com/errata/RHSA-2019:3756
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