First published: Fri Jan 22 2016(Updated: )
mount.ecryptfs_private.c in eCryptfs-utils does not validate mount destination filesystem types, which allows local users to gain privileges by mounting over a nonstandard filesystem, as demonstrated by /proc/$pid.
Credit: security@ubuntu.com
Affected Software | Affected Version | How to fix |
---|---|---|
eCryptfs-utils | <109 | |
Ubuntu | =12.04 | |
Ubuntu | =14.04 | |
Ubuntu | =15.04 | |
Ubuntu | =15.10 | |
SUSE Linux | =42.1 | |
openSUSE | =13.1 | |
openSUSE | =13.2 | |
Debian Linux | =7.0 | |
Debian Linux | =8.0 | |
Red Hat Fedora | =22 | |
Red Hat Fedora | =23 |
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CVE-2016-1572 has been classified as a high severity vulnerability due to its potential to allow privilege escalation.
To resolve CVE-2016-1572, update the eCryptfs-utils package to a version that is patched against this vulnerability.
CVE-2016-1572 affects multiple versions of eCryptfs-utils across several Linux distributions, including Ubuntu, Debian, Fedora, and openSUSE.
CVE-2016-1572 can be exploited by local users to gain elevated privileges by improperly mounting over nonstandard filesystem types.
The vulnerability in CVE-2016-1572 is found in the mount.ecryptfs_private.c component, which fails to validate mount destination filesystem types.