CVE-2009-0858
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does...
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.
Exploit likelihood
What each source reports
NVD Score used
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.
- Record
CVE-2009-0858- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.
- Record
CVE-2009-0858- Updated
- 2026-11-02
EUVDEUVD-2009-0855 No score
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.
- Record
EUVD-2009-0855- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f296-f6r3-pgjg No score
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does...
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.
- Record
GHSA-f296-f6r3-pgjg- Weakness
- CWE-20
- Updated
- 2026-11-02
OSV No score
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.
- Record
CVE-2009-0858- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-0858 No score
The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.
- Record
DEBIAN-CVE-2009-0858- Updated
- 2026-11-02
Affected products
Affected packages
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | djbdns 1.05 - Long Response Packet Remote Cache Poisoning | 2009-02-27 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-0858 is a medium vulnerability (CVSS 5.8) in D.j.bernstein Djbdns, published March 9, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 6.28%, the 93rd percentile. Fixed in djbdns 1:1.05-5.
References
secunia.com/advisories/35820
securityfocus.com/archive/1/501340/100/0/threaded
exchange.xforce.ibmcloud.com/vulnerabilities/49003
securityandthe.net/2009/03/05/security-issue-in-djbdns-confirmed
debian.org/security/2009/dsa-1831
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marc.info?l=djbdns&m=123613000920446&w=2
it.slashdot.org/article.pl?sid=09/03/05/2014249
nvd.nist.gov/vuln/detail/CVE-2009-0858
github.com/advisories/GHSA-f296-f6r3-pgjg
security-tracker.debian.org/tracker/CVE-2009-0858