Bug#1077750: dnsjava: CVE-2023-50387

[Salvatore Bonaccorso]

Source: dnsjava
Version: 2.1.8-2
Severity: grave
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for dnsjava.

CVE-2023-50387[0]:
| Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035,
| 6840, and related RFCs) allow remote attackers to cause a denial of
| service (CPU consumption) via one or more DNSSEC responses, aka the
| "KeyTrap" issue. One of the concerns is that, when there is a zone
| with many DNSKEY and RRSIG records, the protocol specification
| implies that an algorithm must evaluate all combinations of DNSKEY
| and RRSIG records.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2023-50387
    https://www.cve.org/CVERecord?id=CVE-2023-50387
[1] https://github.com/advisories/GHSA-crjg-w57m-rqqf
[2] https://github.com/dnsjava/dnsjava/commit/07ac36a11578cc1bce0cd8ddf2fe568f062aee78 (v3.6.0)
[3] https://github.com/dnsjava/dnsjava/commit/3ddc45ce8cdb5c2274e10b7401416f497694e1cf (v3.6.0)

Regards,
Salvatore