Bug 1043398 - (CVE-2017-7507) VUL-1: CVE-2017-7507: gnutls: Crash upon receiving well-formed status_request extension
(CVE-2017-7507)
VUL-1: CVE-2017-7507: gnutls: Crash upon receiving well-formed status_request...
Status: RESOLVED FIXED
Classification: Novell Products
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents
unspecified
Other Other
: P3 - Medium : Minor
: ---
Assigned To: Security Team bot
Security Team bot
https://smash.suse.de/issue/186441/
CVSSv3:RedHat:CVE-2017-7507:7.5:(AV:N...
:
Depends on:
Blocks:
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Reported: 2017-06-08 13:20 UTC by Victor Pereira
Modified: 2017-07-14 22:41 UTC (History)
3 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---


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Description Victor Pereira 2017-06-08 13:20:10 UTC
rh#1454621

It was found that GnuTLS would crash when receiving a client hello message with status_request extension that has a non-empty responder_id_list.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1454621
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-7507
Comment 1 Victor Pereira 2017-06-08 13:21:00 UTC
upstream advisory: https://www.gnutls.org/security.html#GNUTLS-SA-2017-4
Comment 2 Andreas Stieger 2017-06-08 15:27:29 UTC
Code:
https://gitlab.com/gnutls/gnutls/commit/4c4d35264fada08b6536425c051fb8e0b05ee86b
ext/status_request: ensure response IDs are properly deinitialized
https://gitlab.com/gnutls/gnutls/commit/3efb6c5fd0e3822ec11879d5bcbea0e8d322cd03
ext/status_request: Removed the parsing of responder IDs from client extension

Doc:
https://gitlab.com/gnutls/gnutls/commit/e1d6c59a7b0392fb3b8b75035614084a53e2c8c9
gnutls_ocsp_status_request_enable_client: documented requirements for parameters
Comment 5 Swamp Workflow Management 2017-07-11 19:15:09 UTC
SUSE-SU-2017:1838-1: An update that solves two vulnerabilities and has one errata is now available.

Category: security (moderate)
Bug References: 1034173,1038337,1043398
CVE References: CVE-2017-7507,CVE-2017-7869
Sources used:
SUSE Linux Enterprise Software Development Kit 12-SP2 (src):    gnutls-3.2.15-18.3.1
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (src):    gnutls-3.2.15-18.3.1
SUSE Linux Enterprise Server 12-SP2 (src):    gnutls-3.2.15-18.3.1
SUSE Linux Enterprise Desktop 12-SP2 (src):    gnutls-3.2.15-18.3.1
Comment 6 Andreas Stieger 2017-07-14 18:45:46 UTC
release 42.2, done
Comment 7 Swamp Workflow Management 2017-07-14 22:15:24 UTC
openSUSE-SU-2017:1875-1: An update that solves two vulnerabilities and has one errata is now available.

Category: security (moderate)
Bug References: 1034173,1038337,1043398
CVE References: CVE-2017-7507,CVE-2017-7869
Sources used:
openSUSE Leap 42.2 (src):    gnutls-3.2.15-11.3.1