CVE catalog
CVE-2023-2603
libcap2: CVE-2023-2603
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.58% · Oct 25, 2026
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. libcap: Integer Overflow in _libcap_strdup() This vulnerability is rated by the security researchers who discovered it (linked in external references, see section 4.1.2) as a Moderate impact. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libcap2 | sid | 1:2.78-1 | fixed |
| Debian | libcap2 | forky | 1:2.78-1 | fixed |
| Debian | libcap2 | trixie | 1:2.75-10+deb13u1 | fixed |
| Debian | libcap2 | bookworm | 1:2.66-4+deb12u3 | fixed |
| Alpine | libcap | 3.15 | 2.61-r1 | fixed |
| Alpine | libcap | 3.16 | 2.64-r1 | fixed |
| Alpine | libcap | 3.17 | 2.66-r1 | fixed |
| Ubuntu | libcap2 | pro | 1:2.25-1.1 | vulnerable |
| Ubuntu | libcap2 | pro | 1:2.25-1.2 | vulnerable |
| Ubuntu | libcap2 | pro | 1:2.25-1.2ubuntu0.1~esm1 | fixed |
| Ubuntu | libcap2 | pro | 1:2.25-1.1 | vulnerable |
| Ubuntu | libcap2 | pro | 1:2.25-1.2 | vulnerable |
| Ubuntu | libcap2 | pro | 1:2.25-1.2ubuntu0.1~esm1 | fixed |
| Ubuntu | libcap2 | 20.04 | 1:2.25-2 | vulnerable |
| Ubuntu | libcap2 | 20.04 | 1:2.27-1 | vulnerable |
| Ubuntu | libcap2 | 20.04 | 1:2.32-1 | vulnerable |
| Ubuntu | libcap2 | 20.04 | 1:2.32-1ubuntu0.1 | fixed |
| Ubuntu | libcap2 | 22.04 | 1:2.44-1build1 | vulnerable |
| Ubuntu | libcap2 | 22.04 | 1:2.44-1build2 | vulnerable |
| Ubuntu | libcap2 | 22.04 | 1:2.44-1build3 | vulnerable |
| Ubuntu | libcap2 | 22.04 | 1:2.44-1ubuntu0.22.04.1 | fixed |
| Suse | libcap | linux enterprise real time 15 sp3 | 2.26-150000.4.9.1 | fixed |
| Suse | libcap | manager proxy 4.2 | 2.26-150000.4.9.1 | fixed |
| Suse | libcap | manager server 4.2 | 2.26-150000.4.9.1 | fixed |
| Suse | libcap | linux enterprise micro 5.1 | 2.26-150000.4.9.1 | fixed |
| Suse | libcap | linux enterprise micro 5.2 | 2.26-150000.4.9.1 | fixed |
| Opensuse | libcap | leap 15.4 | 2.26-150000.4.9.1 | fixed |
| Suse | libcap | linux enterprise software development kit 12 sp5 | 2.26-14.9.1 | fixed |
| Suse | libcap | linux enterprise server 12 sp5 | 2.26-14.9.1 | fixed |
| Suse | libcap | linux enterprise server for sap applications 12 sp5 | 2.26-14.9.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libcap2 | source | sid | 1:2.66-4 | not yet assigned | Not reported | [1036114] |
| Debian | libcap2 | source | forky | 1:2.66-4 | not yet assigned | Not reported | [1036114] |
| Debian | libcap2 | source | trixie | 1:2.66-4 | not yet assigned | Not reported | [1036114] |
| Debian | libcap2 | source | bookworm | 1:2.66-4 | not yet assigned | Not reported | [1036114] |
| Alpine | libcap | apk | 3.15 | 2.61-r1 | Not reported | ALPINE-CVE-2023-2603 | Not reported |
| Alpine | libcap | apk | 3.16 | 2.64-r1 | Not reported | ALPINE-CVE-2023-2603 | Not reported |
| Alpine | libcap | apk | 3.17 | 2.66-r1 | Not reported | ALPINE-CVE-2023-2603 | Not reported |
| Ubuntu | libcap2 | deb | pro | 1:2.25-1.2ubuntu0.1~esm1 | Not reported | USN-6166-2 | Not reported |
| Ubuntu | libcap2 | deb | pro | 1:2.25-1.2ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2023-2603 | Not reported |
| Ubuntu | libcap2 | deb | 20.04 | 1:2.32-1ubuntu0.1 | Not reported | UBUNTU-CVE-2023-2603 | Not reported |
| Ubuntu | libcap2 | deb | 22.04 | 1:2.44-1ubuntu0.22.04.1 | Not reported | UBUNTU-CVE-2023-2603 | Not reported |
| Suse | libcap | rpm | linux enterprise real time 15 sp3 | 2.26-150000.4.9.1 | Not reported | SUSE-SU-2023:2956-1 | Not reported |
| Suse | libcap | rpm | manager proxy 4.2 | 2.26-150000.4.9.1 | Not reported | SUSE-SU-2023:2956-1 | Not reported |
| Suse | libcap | rpm | manager server 4.2 | 2.26-150000.4.9.1 | Not reported | SUSE-SU-2023:2956-1 | Not reported |
| Suse | libcap | rpm | linux enterprise micro 5.1 | 2.26-150000.4.9.1 | Not reported | SUSE-SU-2023:2956-1 | Not reported |
| Suse | libcap | rpm | linux enterprise micro 5.2 | 2.26-150000.4.9.1 | Not reported | SUSE-SU-2023:2956-1 | Not reported |
| Opensuse | libcap | rpm | leap 15.4 | 2.26-150000.4.9.1 | Not reported | SUSE-SU-2023:2956-1 | Not reported |
| Suse | libcap | rpm | linux enterprise software development kit 12 sp5 | 2.26-14.9.1 | Not reported | SUSE-SU-2023:2764-1 | Not reported |
| Suse | libcap | rpm | linux enterprise server 12 sp5 | 2.26-14.9.1 | Not reported | SUSE-SU-2023:2764-1 | Not reported |
| Suse | libcap | rpm | linux enterprise server for sap applications 12 sp5 | 2.26-14.9.1 | Not reported | SUSE-SU-2023:2764-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_4524.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-2603]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-2603]
- [https://osv.dev/vulnerability/SUSE-SU-2023:2764-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:2956-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-2603]
- [https://osv.dev/vulnerability/USN-6166-2]
- [https://security-tracker.debian.org/tracker/CVE-2023-2603]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-2603.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2679.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]