Use After Free in Linux Kernel
CVE-2022-41849
drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-after-free if a physically proximate attacker removes a USB device while calling open(), aka a race condition between ufx_ops_open and ufx_usb_disconnect.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.9% 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
- Debian Linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lore.kernel.org/all/20220925133243.GA383897@ubuntu/T/
- lists.debian.org/debian-lts-announce/2022/12/msg00031.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/12/msg00034.html (mailing-list, Mailing List, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
Frequently asked questions
- What is CVE-2022-41849?
- CVE-2022-41849 is a medium-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.2/10. Published 2022-09-30.
- How severe is CVE-2022-41849?
- Medium severity. CVSS v3 base score is 4.2 out of 10.
- Is CVE-2022-41849 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.