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USN-4218-1: GNU C Library vulnerability

10 December 2019

GNU C Library could be made to execute arbitrary code or cause a crash if it received a specially crafted input.




Jakub Wilk discovered that GNU C Library incorrectly handled certain memory alignments.
An attacker could possibly use this issue to execute arbitrary code or cause
a crash.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04
Ubuntu 12.04

After a standard system update you need to reboot your computer to make
all the necessary changes.


Related notices

  • USN-4416-1: multiarch-support, libc6-x32, libc6-dev, libc-bin, libc6-dev-armel, locales-all, glibc, libc6-dev-s390, libc6-armel, glibc-source, libc6-amd64, libc6-pic, libc6, libc6-dev-i386, libc6-s390, nscd, libc6-dev-x32, glibc-doc, libc-dev-bin, libc6-udeb, locales, libc6-ppc64, libc6-i386, libc6-dev-amd64, libc6-dev-ppc64