SB2017030881 - Race condition in Linux kernel
Published: March 8, 2017
Security Bulletin ID
SB2017030881
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2017-2636)
The vulnerability allows a local user to execute arbitrary code.
Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline.
Remediation
Install update from vendor's website.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1428319
- http://www.openwall.com/lists/oss-security/2017/03/07/6
- http://www.securityfocus.com/bid/96732
- https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html
- http://www.securitytracker.com/id/1037963
- http://www.debian.org/security/2017/dsa-3804
- https://access.redhat.com/errata/RHSA-2017:1488
- https://access.redhat.com/errata/RHSA-2017:1233
- https://access.redhat.com/errata/RHSA-2017:1232
- https://access.redhat.com/errata/RHSA-2017:1126
- https://access.redhat.com/errata/RHSA-2017:1125
- https://access.redhat.com/errata/RHSA-2017:0986
- https://access.redhat.com/errata/RHSA-2017:0933
- https://access.redhat.com/errata/RHSA-2017:0932
- https://access.redhat.com/errata/RHSA-2017:0931
- https://access.redhat.com/errata/RHSA-2017:0892