Use After Free in Linux Kernel
CVE-2023-1193
A use-after-free flaw was found in setup_async_work in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed work.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Linux Kernel — versions 6.3
- Fedora
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Kernel — versions 6.3-rc6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/security/cve/CVE-2023-1193 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking)
- lkml.kernel.org/linux-cifs/20230401084951.6085-2-linkinjeon@kernel.org/T/ (Patch, Mailing List)
Frequently asked questions
- What is CVE-2023-1193?
- CVE-2023-1193 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 6.5/10. Published 2023-11-01.
- How severe is CVE-2023-1193?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-1193 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.