Information disclosure in Linux Kernel
CVE-2023-0597
A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. A local user could use this flaw to get access to some important data with expected location in memory.
Vulnerability class: Information Disclosure
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:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.3% 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 6.2
- Kernel — versions Linux kernel 6.2-rc1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.kernel.org/linus/97e3d26b5e5f371b3ee223d94dd123e6c442ba80 (Patch, Mailing List)
- www.openwall.com/lists/oss-security/2023/07/28/1 (mailing-list)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
Frequently asked questions
- What is CVE-2023-0597?
- CVE-2023-0597 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 5.5/10. Published 2023-02-23.
- How severe is CVE-2023-0597?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-0597 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.