CVE-2009-1086 json
Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service…
published 2009-03-25 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1087
- cvss
- 6.4
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.5%
- EPSS 3.5% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record (RR) with a long (1) class field (clas variable) and possibly (2) TTL field.
Patch / fix
- ldns Debian 14, Debian 13, Debian 12 1.5.1-1
debian advisories DEBIAN-CVE-2009-1086
Exploit prediction
3.47% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
Classification
- Weakness
-
- CWE-399 Resource Management Errors
References
-
lists.opensuse.org
/opensuse-security-announce/2009-05/msg00000.html
vendor-advisory
-
debian.org
/security/2009/dsa-1795
vendor-advisory
-
secunia.com
/advisories/35013
third-party-advisory
-
openwall.com
/lists/oss-security/2009/03/24/4
mailing-list
-
securityfocus.com
/bid/34233
vdb-entry
- nlnetlabs.nl /svn/ldns/tags/release-1.5.0/Changelog
-
secunia.com
/advisories/35065
third-party-advisory
- nlnetlabs.nl /bugs/show_bug.cgi?id=232
Sources
- CVE List CVE-2009-1086
- NVD CVE-2009-1086
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