CVE-2016-4484

Public Exploit

Description

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.

Category

6.8
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.53%
Third-Party Advisory hmarco.org Third-Party Advisory openwall.com Third-Party Advisory openwall.com Third-Party Advisory openwall.com Third-Party Advisory openwall.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2016/11/14/13 third party advisory mailing list
http://hmarco.org/bugs/CVE-2016-4484/CVE-2016-4484_cryptsetup_initrd_shell.html exploit mitigation third party advisory technical description
http://www.openwall.com/lists/oss-security/2016/11/15/1 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2016/11/15/4 third party advisory mailing list
http://www.securityfocus.com/bid/94315 vdb entry
https://gitlab.com/cryptsetup/cryptsetup/commit/ef8a7d82d8d3716ae9b58179590f7908981fa0cb patch
http://www.openwall.com/lists/oss-security/2016/11/16/6 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2016-4484?
CVE-2016-4484 has been scored as a medium severity vulnerability.
How to fix CVE-2016-4484?
To fix CVE-2016-4484, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-4484 being actively exploited in the wild?
It is possible that CVE-2016-4484 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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