CVE-2017-15299
Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 14 Oct 2017, 21:00
Last modified:05 Aug 2024, 19:50
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
14 Oct 2017, 21:00
Published
Vulnerability first disclosed
05 Aug 2024, 19:50
Last Modified
Vulnerability information updated
Description
The KEYS subsystem in the Linux kernel through 4.13.7 mishandles use of add_key for a key that already exists but is uninstantiated, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted system call.
CVSS Metrics
- v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.06%• Percentile: 18%
Techniques & Countermeasures
- CWE-476•NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Systems
- linux•linux_kernel
≤ 4.13.6
References (8)
- https://bugzilla.redhat.com/show_bug.cgi?id=1498016
- https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg1499828.html
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
- https://access.redhat.com/errata/RHSA-2018:0654
- https://marc.info/?t=150654188100001&r=1&w=2
- https://usn.ubuntu.com/3798-1/
- https://usn.ubuntu.com/3798-2/
- https://marc.info/?t=150783958600011&r=1&w=2