USN-5310-2: GNU C Library vulnerabilities
7 March 2022
Several security issues were fixed in GNU C Library.
Releases
Packages
- glibc - GNU C Library
Details
USN-5310-1 fixed several vulnerabilities in GNU. This update provides
the corresponding update for Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that the GNU C library getcwd function incorrectly
handled buffers. An attacker could use this issue to cause the GNU C
Library to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2021-3999)
It was discovered that the GNU C Library sunrpc module incorrectly handled
buffer lengths. An attacker could possibly use this issue to cause the GNU
C Library to crash, resulting in a denial of service. (CVE-2022-23218,
CVE-2022-23219)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
libc6
-
2.23-0ubuntu11.3+esm1
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
Related notices
- USN-5310-1: libc6-lse, glibc-source, libc6-x32, libc-bin, libc-devtools, libc6-prof, libc6-dev-i386, nscd, libc6-dev-x32, locales-all, libc6-dev-armel, libc6-dev-amd64, libc6-dev, libc6-armel, libc6-amd64, libc6-i386, glibc-doc, libc6-s390, glibc, libc6-dev-s390, multiarch-support, libc-dev-bin, locales, libc6-pic, libc6
- USN-6762-1: libc6-lse, glibc-source, libc6-x32, libc-bin, eglibc, libc6-prof, libc6-dev-i386, nscd, libc6-dev-x32, eglibc-source, locales-all, libc6-dev-armel, libc6-dev-amd64, libc6-dev, libc6-armel, libc6-amd64, libc6-i386, glibc-doc, libc6-s390, glibc, libc6-dev-s390, multiarch-support, libc-dev-bin, locales, libc6-pic, libc6