Vulnerability in Linux Kernel
CVE-2011-5321
The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
References
- www.openwall.com/lists/oss-security/2015/03/13/17 (mailing-list)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Vendor Advisory)
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.1
- bugzilla.redhat.com/show_bug.cgi
- github.com/torvalds/linux/commit/c290f8358acaeffd8e0c551ddcc24d1206143376 (Vendor Advisory)
- rhn.redhat.com/errata/RHSA-2015-1221.html (vendor-advisory)
Frequently asked questions
- What is CVE-2011-5321?
- CVE-2011-5321 is a medium-severity vulnerability in Linux Kernel. CVSS score: 5.5/10. Published 2016-05-02.
- How severe is CVE-2011-5321?
- Medium severity. CVSS v3 base score is 5.5 out of 10.