CVE-2019-5595: Medium severity freebsd kernel vulnerability

Published Feb 12, 2019

Updated

In FreeBSD before 11.2-STABLE(r343782), 11.2-RELEASE-p9, 12.0-STABLE(r343781), and 12.0-RELEASE-p3, kernel callee-save registers are not properly sanitized before return from system calls, potentially allowing some kernel data used in the system call to be exposed.

Affected Software

2 affected components

FreeBSD FreeBSD=11.2

FreeBSD FreeBSD=12.0

Remediation

Patch Available

https://security.FreeBSD.org/advisories/FreeBSD-SA-19:01.syscall.asc

Event History

Feb 12, 2019

CVE Published

via MITRE·05:00 AM

Data Sourced

via MITRE·05:00 AM

DescriptionWeakness

Data Sourced

via NVD·05:29 AM

RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2019-5595?

CVE-2019-5595 has a moderate severity rating due to potential exposure of kernel data.

How do I fix CVE-2019-5595?

To fix CVE-2019-5595, upgrade to FreeBSD versions 11.2-STABLE(r343782), 11.2-RELEASE-p9, 12.0-STABLE(r343781), or 12.0-RELEASE-p3.

What software versions are affected by CVE-2019-5595?

CVE-2019-5595 affects FreeBSD versions 11.2 and 12.0 before specific patches.

What is the impact of CVE-2019-5595?

The impact of CVE-2019-5595 is the potential exposure of sensitive kernel data through improper sanitation of registers.

Is CVE-2019-5595 a local or remote vulnerability?

CVE-2019-5595 is primarily a local vulnerability that may be exploited through system calls.