USN-5034-2

See a problem?
Source
https://ubuntu.com/security/notices/USN-5034-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5034-2.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5034-2
Related
Published
2021-08-10T17:15:47.447933Z
Modified
2021-08-10T17:15:47.447933Z
Summary
c-ares vulnerability
Details

USN-5034-1 fixed a vulnerability in c-ares. This update provides the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

Philipp Jeitner and Haya Shulman discovered that c-ares incorrectly validated certain hostnames returned by DNS servers. A remote attacker could possibly use this issue to perform Domain Hijacking attacks.

References

Affected packages

Ubuntu:Pro:16.04:LTS / c-ares

Package

Name
c-ares
Purl
pkg:deb/ubuntu/c-ares@1.10.0-3ubuntu0.2+esm1?arch=src?distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.10.0-3ubuntu0.2+esm1

Affected versions

1.*

1.10.0-2
1.10.0-3
1.10.0-3ubuntu0.1
1.10.0-3ubuntu0.2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "libc-ares-dev": "1.10.0-3ubuntu0.2+esm1",
            "libc-ares2": "1.10.0-3ubuntu0.2+esm1",
            "libc-ares2-dbgsym": "1.10.0-3ubuntu0.2+esm1"
        }
    ]
}