NULL Pointer Dereference Affecting gnutls28 package, versions <3.5.8-6ubuntu1
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published16 Jun 2017
- disclosed16 Jun 2017
Introduced: 16 Jun 2017
CVE-2017-7507 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 gnutls28 to version 3.5.8-6ubuntu1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gnutls28 package and not the gnutls28 package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer dereference while decoding a status response TLS extension with valid contents. This could lead to a crash of the GnuTLS server application.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-7507
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7507
- http://www.debian.org/security/2017/dsa-3884
- https://security-tracker.debian.org/tracker/CVE-2017-7507
- https://www.gnutls.org/security.html#GNUTLS-SA-2017-4
- https://access.redhat.com/errata/RHSA-2017:2292
- http://www.securityfocus.com/bid/99102