Description
eCryptfs 104 and earlier uses a default salt to encrypt the mount passphrase, which makes it easier for attackers to obtain user passwords via a brute force attack.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ecryptfs-utils | 103-4 | — |
| Debian 13 | ecryptfs-utils | 103-4 | — |
| Debian 12 | ecryptfs-utils | 103-4 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | ecryptfs-utils | 104-0ubuntu1.14.04.3 | USN-2524-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | ecryptfs-utils | 103-7.1 | SUSE-SU-2016:0241-1 |
| SLES 12 | ecryptfs-utils | 103-7.1 | SUSE-SU-2016:0241-1 |
| SLES 11 SP4 | ecryptfs-utils | 61-1.35.1 | SUSE-SU-2016:0290-1 |
| SLES 11 SP3 | ecryptfs-utils | 61-1.35.1 | SUSE-SU-2016:0290-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | ecryptfs-utils | 103-7.1 | SUSE-SU-2016:0241-1 |
| SLES for SAP 12 | ecryptfs-utils | 103-7.1 | SUSE-SU-2016:0241-1 |
| SLES for SAP 11 SP4 | ecryptfs-utils | 61-1.35.1 | SUSE-SU-2016:0290-1 |
| SLES for SAP 11 SP3 | ecryptfs-utils | 61-1.35.1 | SUSE-SU-2016:0290-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ecryptfs-utils | 108-2.5 | openSUSE-SU-2024:10118-1 |
Advisories 4
- USN-2524-1 ecryptfs-utils vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2016:0241-1 Security update for ecryptfs-utils SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10118-1 ecryptfs-utils-108-2.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0290-1 Security update for ecryptfs-utils SUSE / openSUSE Security Updates · Feb 4, 2026
References
- openSUSE-SU-2016:0291 vendor-advisory
- [oss-security] 20150227 Re: eCryptfs key wrapping help to crack user password mailing-list
- [oss-security] 20150217 CVE request: Linux kernel ecryptfs 1-byte overwrite mailing-list
- [oss-security] 20150210 Re: eCryptfs key wrapping help to crack user password mailing-list
- https://bugs.launchpad.net/ecryptfs/+bug/906550
- USN-2524-1 vendor-advisory