Integer overflow in Libcap Project
CVE-2023-2603
A vulnerability was found in libcap. This issue occurs in the _libcap_strdup() function and can lead to an integer overflow if the input string is close to 4GiB.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Libcap Project
- Debian Linux — versions 11.0
- Fedoraproject Fedora — versions 37, 38
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Libcap
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.x41-dsec.de/static/reports/X41-libcap-Code-Review-2023-OSTIF-Final-Report.p… (Technical Description, Exploit)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory, Broken Link)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory, Broken Link)
Frequently asked questions
- What is CVE-2023-2603?
- CVE-2023-2603 is a high-severity vulnerability in Libcap Project, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2023-06-06.
- How severe is CVE-2023-2603?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-2603 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.