CVE-2023-45863 — An issue was discovered in lib/kobject
An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write.
Published
2023-10-14T21:15:45.233
Last modified
2026-10-15T01:17:09.817
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
01What is this vulnerability?
An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2023-10-14T21:15:45.233
- Last modified: 2026-10-15T01:17:09.817
09References
- cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/html/ssa-613116.html
- cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/html/ssa-769027.html
Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →