Vulnerability · Published Jun 6, 2023 · Assigned by redhat
CVE-2023-2603
High 7.8
In plain English
A high-severity integer overflow in libcap. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.6%top 52.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libcap | 2.48-5.el8_8 | ALSA-2023:4524 |
| AlmaLinux:9 | libcap | 2.48-9.el9_2 | ALSA-2023:5071 |
| AlmaLinux:8 | libcap-devel | 2.48-5.el8_8 | ALSA-2023:4524 |
| AlmaLinux:9 | libcap-devel | 2.48-9.el9_2 | ALSA-2023:5071 |
| Debian:12 | libcap2 | 1:2.66-4 | DEBIAN-CVE-2023-2603 |
| Debian:13 | libcap2 | 1:2.66-4 | DEBIAN-CVE-2023-2603 |
| Debian:14 | libcap2 | 1:2.66-4 | DEBIAN-CVE-2023-2603 |
| Rocky Linux:8 | libcap | 0:2.48-5.el8_8 | RLSA-2023:4524 |
| Ubuntu:22.04:LTS | libcap2 | 1:2.44-1ubuntu0.22.04.1 | UBUNTU-CVE-2023-2603 |
| Ubuntu:22.04:LTS | libcap2 | 1:2.44-1ubuntu0.22.04.1 | USN-6166-1 |
Affected products (as reported)
Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H