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CVE-2017-6964

Publication date 27 March 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

dmcrypt-get-device, as shipped in the eject package of Debian and Ubuntu, does not check the return value of the (1) setuid or (2) setgid function, which might cause dmcrypt-get-device to execute code, which was intended to run as an unprivileged user, as root. This affects eject through 2.1.5+deb1+cvs20081104-13.1 on Debian, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.10.1 on Ubuntu 16.10, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.04.1 on Ubuntu 16.04 LTS, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.14.04.1 on Ubuntu 14.04 LTS, and eject before 2.1.5+deb1+cvs20081104-9ubuntu0.1 on Ubuntu 12.04 LTS.

Read the notes from the security team

Status

Package Ubuntu Release Status
eject 17.04 zesty
Fixed 2.1.5+deb1+cvs20081104-13.2
16.10 yakkety
Fixed 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.10.1
16.04 LTS xenial
Fixed 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.04.1
14.04 LTS trusty
Fixed 2.1.5+deb1+cvs20081104-13.1ubuntu0.14.04.1
12.04 LTS precise
Fixed 2.1.5+deb1+cvs20081104-9ubuntu0.1

Notes

tyhicks

The dmcrypt-get-device binary is built from a patch the Debian/Ubuntu carry. It isn't likely to affect other distros.

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references