A vulnerability was discovered in Firejail which may allow local attackers to gain root privileges.
|Package||sys-apps/firejail on all architectures|
|Affected versions||< 0.9.64.4|
|Unaffected versions||>= 0.9.64.4|
A SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf.
It was discovered that a flaw in Firejail’s OverlayFS code allowed restricted programs to escape sandbox.
A local attacker could obtain arbitrary file system access via an application running within a Firejail sandbox, possibly resulting in privilege escalation.
There is no known workaround at this time.
All Firejail users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/firejail-0.9.64.4"
May 26, 2021
May 26, 2021: 1