Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ GHSA-crjg-w57m-rqqf — dnsjava (CVE-2023-50387)

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-770 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

DNSJava vulnerable to KeyTrap - Denial-of-Service Algorithmic Complexity Attacks

Impact

Users using the ValidatingResolver for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones.

Patches

Users should upgrade to dnsjava v3.6.0

Workarounds

Although not recommended, only using a non-validating resolver, will remove the vulnerability.

References

https://www.athene-center.de/en/keytrap

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

GHSA-crjg-w57m-rqqf is classified as CWE-770: Allocation of Resources Without Limits. Resources are allocated on request with no cap, so a client can exhaust them.

Affected software

GHSA-crjg-w57m-rqqf is recorded against 2 packages.

  • dnsjava:dnsjava (from 3.5.0 up to 3.6.0)
  • org.jitsi:dnssecjava

Timeline and source

Published on 22 July 2024 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Advisory)
github.com (Package)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE CWE-770
Public Exploit ✅ No
Source OSV
Published 2024-07-22
Updated 2026-08-20
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
dnsjava:dnsjava 3.5.0 3.6.0
org.jitsi:dnssecjava — —

Similar Threats

Site Security Check

Is dnsjava part of your stack?

GHSA-crjg-w57m-rqqf is rated CVSS 8.0 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.