NULL pointer dereference in Linux Kernel
CVE-2017-12193
The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.
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: 0.005 (36.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% 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
- Linux Kernel
- Linux Kernel Since 3.13 Up To 4.14 (Not Including) — versions Linux kernel since 3.13 up to 4.14 (not including)
Weakness classification (CWE)
References
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 (Issue Tracking)
- github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b (Patch, Vendor Advisory)
- www.securityfocus.com/bid/101678 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
- access.redhat.com/errata/RHSA-2018:0151 (vendor-advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Issue Tracking)
- usn.ubuntu.com/3698-1/ (vendor-advisory)
- usn.ubuntu.com/3698-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2017-12193?
- CVE-2017-12193 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2017-11-22.
- How severe is CVE-2017-12193?
- Medium severity. CVSS v3 base score is 5.5 out of 10.