Vulnerability in Linux Kernel
CVE-2023-3161
A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (9.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Linux Kernel — versions 6.2
- Fedoraproject Fedora — versions 38
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Linux Kernel (Fbcon) — versions Fixed in kernel 6.2-rc7
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0be (Patch)
Frequently asked questions
- What is CVE-2023-3161?
- CVE-2023-3161 is a medium-severity vulnerability in Linux Kernel, classified under CWE-1335. CVSS score: 5.5/10. Published 2023-06-12.
- How severe is CVE-2023-3161?
- Medium severity. CVSS v3 base score is 5.5 out of 10.