USN-7925-1

It was discovered that c-ares incorrectly handled terminating certain queries after a maximum number of attempts. An attacker could possibly use this issue to cause c-ares to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:25.10 / c-ares

Package

Name: c-ares
Purl: pkg:deb/ubuntu/c-ares@1.34.5-1ubuntu0.1?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.34.5-1ubuntu0.1

Affected versions

1.*

1.34.4-2.1

1.34.5-1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.34.5-1ubuntu0.1",
            "binary_name": "libc-ares-dev"
        },
        {
            "binary_version": "1.34.5-1ubuntu0.1",
            "binary_name": "libc-ares2"
        },
        {
            "binary_version": "1.34.5-1ubuntu0.1",
            "binary_name": "libcares2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7925-1.json"

cves_map

{
    "ecosystem": "Ubuntu:25.10",
    "cves": [
        {
            "id": "CVE-2025-62408",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}