CVE-2015-2830

Description

arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.

Category

1.9
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-2631-1 vendor advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2 vendor advisory
http://www.ubuntu.com/usn/USN-2632-1 vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html vendor advisory
http://www.securitytracker.com/id/1032413 vdb entry
http://www.debian.org/security/2015/dsa-3237 vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-1138.html vendor advisory
https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1208598
http://rhn.redhat.com/errata/RHSA-2015-1137.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-1221.html vendor advisory
http://www.openwall.com/lists/oss-security/2015/04/02/1 mailing list

Frequently Asked Questions

What is the severity of CVE-2015-2830?
CVE-2015-2830 has been scored as a low severity vulnerability.
How to fix CVE-2015-2830?
To fix CVE-2015-2830, 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-2015-2830 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-2830 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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