Advisories ยป MGASA-2021-0341

Updated binutils packages fix security vulnerabilities

Publication date: 12 Jul 2021
Type: security
Affected Mageia releases : 8
CVE: CVE-2021-3487 , CVE-2021-20197


This update provides binutils 2.36.1 and fixes at least the following security

There's a flaw in the BFD library of binutils in versions before 2.36. An
attacker who supplies a crafted file to an application linked with BFD, and
using the DWARF functionality, could cause an impact to system availability
by way of excessive memory consumption (CVE-2021-3487).

There is an open race window when writing output in the following utilities
in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When
these utilities are run as a privileged user (presumably as part of a script
updating binaries across different users), an unprivileged user can trick
these utilities into getting ownership of arbitrary files through a symlink

For more info about the 2.36 update, see the sourceware link.