Vulnerability in Linux Kernel
CVE-2016-2543
The snd_seq_ioctl_remove_events function in sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not verify FIFO assignment before proceeding with FIFO clearing, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted ioctl call.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
References
- www.ubuntu.com/usn/USN-2930-1 (vendor-advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Vendor Advisory)
- www.ubuntu.com/usn/USN-2967-1 (vendor-advisory)
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 (Vendor Advisory)
- www.ubuntu.com/usn/USN-2930-2 (vendor-advisory)
- github.com/torvalds/linux/commit/030e2c78d3a91dd0d27fef37e91950dde333eba1 (Patch, Vendor Advisory)
- www.debian.org/security/2016/dsa-3503 (vendor-advisory)
- www.ubuntu.com/usn/USN-2967-2 (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi
- www.openwall.com/lists/oss-security/2016/01/19/1 (mailing-list)
Frequently asked questions
- What is CVE-2016-2543?
- CVE-2016-2543 is a medium-severity vulnerability in Linux Kernel. CVSS score: 6.2/10. Published 2016-04-27.
- How severe is CVE-2016-2543?
- Medium severity. CVSS v3 base score is 6.2 out of 10.