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CVE-2019-7309

Publication date 3 February 2019

Last updated 24 July 2024

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.

Read the notes from the security team

Status

Package Ubuntu Release Status
eglibc 20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Ignored
glibc 20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco Ignored
18.10 cosmic Ignored
18.04 LTS bionic Ignored
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release

Notes

mdeslaur

only affects x32 we will not be fixing this issue in Ubuntu stable releases, marking as ignored

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H