Out-of-bounds Read in Linux Kernel
CVE-2023-39194
A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an information disclosure.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.2 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- Linux Kernel — versions 6.5
- Fedoraproject Fedora — versions 38
- 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-2023-39194 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- www.zerodayinitiative.com/advisories/ZDI-CAN-18111/ (Patch, VDB Entry, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-39194?
- CVE-2023-39194 is a low-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 3.2/10. Published 2023-10-09.
- How severe is CVE-2023-39194?
- Low severity. CVSS v3 base score is 3.2 out of 10.
- Is CVE-2023-39194 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.