USN-3536-1: GNU C Library vulnerability

17 January 2018

The GNU C library could be made to run programs as an administrator.

Releases

Packages

Details

It was discovered that the GNU C library did not properly handle all of
the possible return values from the kernel getcwd(2) syscall. A local
attacker could potentially exploit this to execute arbitrary code in setuid
programs and gain administrative privileges. (CVE-2018-1000001)

Update instructions

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

Ubuntu 12.04

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

References

Related notices

  • USN-3534-1: libc6-dev-armel, libc6-ppc64, libc6-udeb, nscd, libnss-dns-udeb, libc6-armel, locales-all, glibc-source, locales, libc6-dev-s390, libc6-dev-amd64, libc6-amd64, libc6-x32, libnss-files-udeb, libc-bin, multiarch-support, glibc, libc6-pic, libc-dev-bin, libc6, libc6-s390, libc6-i386, libc6-dev-x32, libc6-prof, libc6-dev-ppc64, eglibc, glibc-doc, eglibc-source, libc6-dev-i386, libc6-dev