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USN-3536-1: GNU C Library vulnerability

17 January 2018

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




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.


Related notices

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