Improper Authentication Affecting cryptsetup package, versions <2:1.7.3-2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-CRYPTSETUP-11739835
- published10 Aug 2025
- disclosed23 Jan 2017
Introduced: 23 Jan 2017
CVE-2016-4484 (opens in a new tab)How to fix?
Upgrade Debian:14 cryptsetup to version 2:1.7.3-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cryptsetup package and not the cryptsetup package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
The Debian initrd script for the cryptsetup package 2:1.7.3-2 and earlier allows physically proximate attackers to gain shell access via many log in attempts with an invalid password.
References
- https://security-tracker.debian.org/tracker/CVE-2016-4484
- http://hmarco.org/bugs/CVE-2016-4484/CVE-2016-4484_cryptsetup_initrd_shell.html
- https://gitlab.com/cryptsetup/cryptsetup/commit/ef8a7d82d8d3716ae9b58179590f7908981fa0cb
- http://www.openwall.com/lists/oss-security/2016/11/14/13
- http://www.openwall.com/lists/oss-security/2016/11/15/1
- http://www.openwall.com/lists/oss-security/2016/11/15/4
- http://www.openwall.com/lists/oss-security/2016/11/16/6
- http://www.securityfocus.com/bid/94315
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-4484