Debian LTS: DLA-4092-1: libcap2 Security Advisory Updates

* CVE-2023-2602: A vulnerability was found in the pthread_create()
function. This issue could have allowed a malicious actor in order
to exhaust the system's memory.

* CVE-2023-2603: An issue was found in the _libcap_strdup function
which could have led to an integer overflow if the input string was
close to 4GiB.

* CVE-2025-1390: The pam_cap.so PAM module supports group names
starting with "@" but during parsing, configurations not starting
with "@" were incorrectly recognised as group names. This
user-group confusion may have resulted in unintended users being
granted an inherited capability set, potentially leading to
security risks. Attackers could have exploited this vulnerability
to achieve local privilege escalation on systems where
capability.conf was used to configure user inherited privileges by
constructing specific usernames.

For Debian 11 bullseye, these problems have been fixed in version
1:2.44-1+deb11u1.

We recommend that you upgrade your libcap2 packages.