NULL Pointer Dereference Affecting nss package, versions <2:3.28.4-0ubuntu0.16.04.2
Threat Intelligence
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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- published30 May 2017
- disclosed30 May 2017
Introduced: 30 May 2017
CVE-2017-7502 (opens in a new tab)How to fix?
Upgrade Ubuntu:16.04 nss to version 2:3.28.4-0ubuntu0.16.04.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Ubuntu.
See How to fix? for Ubuntu:16.04 relevant fixed versions and status.
Null pointer dereference vulnerability in NSS since 3.24.0 was found when server receives empty SSLv2 messages resulting into denial of service by remote attacker.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-7502
- http://www.debian.org/security/2017/dsa-3872
- https://security-tracker.debian.org/tracker/CVE-2017-7502
- https://hg.mozilla.org/projects/nss/rev/55ea60effd0d
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://access.redhat.com/errata/RHSA-2017:1364
- https://access.redhat.com/errata/RHSA-2017:1365
- https://access.redhat.com/errata/RHSA-2017:1567
- https://access.redhat.com/errata/RHSA-2017:1712
- http://www.securityfocus.com/bid/98744
- http://www.securitytracker.com/id/1038579
- https://access.redhat.com/security/cve/CVE-2017-7502
- https://bugzilla.redhat.com/show_bug.cgi?id=1446631