NULL pointer dereference in Linux Kernel
CVE-2023-6915
A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (15.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Linux Kernel — versions 6.7
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-553.rt7.342.el8_10, 0:4.18.0-553.el8_10
- Red Hat Enterprise Linux 9 — versions 0:5.14.0-427.13.1.el9_4
- Red Hat Enterprise Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2024:2394 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:2950 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3138 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2023-6915 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking)
- github.com/torvalds/linux/commit/af73483f4e8b6f5c68c9aa63257bdd929a9c194a (Patch)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-6915?
- CVE-2023-6915 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 6.2/10. Published 2024-01-15.
- How severe is CVE-2023-6915?
- Medium severity. CVSS v3 base score is 6.2 out of 10.
- Is CVE-2023-6915 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.