[SECURITY] [DSA 3687-1] nspr security update

ID DEBIAN:DSA-3687-1:6ED55
Type debian
Reporter Debian
Modified 2016-10-05T19:19:07


Debian Security Advisory DSA-3687-1 security@debian.org https://www.debian.org/security/ Florian Weimer October 05, 2016 https://www.debian.org/security/faq

Package : nspr CVE ID : CVE-2016-1951 Debian Bug : 583651

Two vulnerabilities were reported in NSPR, a library to abstract over operating system interfaces developed by the Mozilla project.


q1 reported that the NSPR implementation of sprintf-style string
formatting function miscomputed memory allocation sizes,
potentially leading to heap-based buffer overflows

The second issue concerns environment variable processing in NSPR. The library did not ignore environment variables used to configuring logging and tracing in processes which underwent a SUID/SGID/AT_SECURE transition at process start. In certain system configurations, this allowed local users to escalate their privileges.

In addition, this nspr update contains further stability and correctness fixes and contains support code for an upcoming nss update.

For the stable distribution (jessie), these problems have been fixed in version 2:4.12-1+debu8u1.

For the unstable distribution (sid), these problems have been fixed in version 2:4.12-1.

We recommend that you upgrade your nspr packages.

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org