ArchLinux: 202102-41: tar: denial of service
Summary
An issue was discovered in GNU Tar before version 1.34. There is a memory leak in read_header() in list.c in the tar application.
Resolution
Upgrade to 1.34-1.
# pacman -Syu "tar>=1.34-1"
The problem has been fixed upstream in version 1.34.
References
https://bugzilla.redhat.com/show_bug.cgi?id=1917565 https://savannah.gnu.org/bugs/?59897 https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777 https://security.archlinux.org/CVE-2021-20193
Workaround
None.