An issue was discovered in evaluate_auto_mountpoint in btrfsmaintenance-functions in btrfsmaintenance...

Vulnerability Description

An issue was discovered in evaluate_auto_mountpoint in btrfsmaintenance-functions in btrfsmaintenance through 0.4.1. Code execution as root can occur via a specially crafted filesystem label if btrfs-{scrub,balance,trim} are set to auto in /etc/sysconfig/btrfsmaintenance (this is not the default, though).

References

• https://bugzilla.suse.com/show_bug.cgi?id=1102721
• http://www.openwall.com/lists/oss-security/2018/08/14/7
• http://www.openwall.com/lists/oss-security/2019/06/27/7
• http://www.openwall.com/lists/oss-security/2019/06/28/1
• http://www.openwall.com/lists/oss-security/2019/06/28/2