CVE-2015-2830
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. Limited direct impact.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 1.9 LOW (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-264
- Record status
- Modified
Affected
- Debian Linux 7.0
- Debian Linux 8.0
- Linux Kernel ≤ 3.19.1
- Canonical Ubuntu Linux 12.04
Attack profile CVSS 2.0 · 1.9
- Attack vector
- Local
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- None
- Integrity
- Partial
- Availability
- None
Raw vector
AV:L/AC:M/Au:N/C:N/I:P/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2015-2830.md and follow it. Check whether this project is affected by CVE-2015-2830. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2
- https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2
- https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b
References
- 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
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
- http://rhn.redhat.com/errata/RHSA-2015-1137.html
- http://rhn.redhat.com/errata/RHSA-2015-1138.html
- http://rhn.redhat.com/errata/RHSA-2015-1221.html
- http://www.debian.org/security/2015/dsa-3237
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2
- http://www.openwall.com/lists/oss-security/2015/04/02/1
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securitytracker.com/id/1032413
- http://www.ubuntu.com/usn/USN-2631-1
- http://www.ubuntu.com/usn/USN-2632-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1208598
- 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
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
- http://rhn.redhat.com/errata/RHSA-2015-1137.html
- http://rhn.redhat.com/errata/RHSA-2015-1138.html
- http://rhn.redhat.com/errata/RHSA-2015-1221.html
- http://www.debian.org/security/2015/dsa-3237
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2