CVE catalog
CVE-2009-1086
ldns: CVE-2009-1086
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.47% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ldns | sid | 1.9.2-1 | fixed |
| Debian | ldns | forky | 1.9.2-1 | fixed |
| Debian | ldns | trixie | 1.8.4-2 | fixed |
| Debian | ldns | bookworm | 1.8.3-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ldns | source | sid | 1.5.1-1 | not yet assigned | Not reported | Not reported |
| Debian | ldns | source | forky | 1.5.1-1 | not yet assigned | Not reported | Not reported |
| Debian | ldns | source | trixie | 1.5.1-1 | not yet assigned | Not reported | Not reported |
| Debian | ldns | source | bookworm | 1.5.1-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ldnsutils]Fixed
Source package: [ldns]
Details (2)
1.8.3-1+b1· amd64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
1.8.3-1+b1· arm64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
- [libldns3]Fixed
Source package: [ldns]
Details (2)
1.8.3-1+b1· amd64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
1.8.3-1+b1· arm64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
- [libldns-dev]Fixed
Source package: [ldns]
Details (2)
1.8.3-1+b1· amd64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
1.8.3-1+b1· arm64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
- [python3-ldns]Fixed
Source package: [ldns]
Details (2)
1.8.3-1+b1· amd64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
1.8.3-1+b1· arm64 · bookwormFixed · Fixed:
1.5.1-1dsa · ldns · debian · bookworm; dsa · ldns · debian · 12
[Debian 13 (Trixie)]
- [ldnsutils]Fixed
Source package: [ldns]
Details (2)
1.8.4-2+b1· amd64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
1.8.4-2+b1· arm64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
- [libldns3t64]Fixed
Source package: [ldns]
Details (2)
1.8.4-2+b1· amd64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
1.8.4-2+b1· arm64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
- [libldns-dev]Fixed
Source package: [ldns]
Details (2)
1.8.4-2+b1· amd64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
1.8.4-2+b1· arm64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
- [python3-ldns]Fixed
Source package: [ldns]
Details (2)
1.8.4-2+b1· amd64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
1.8.4-2+b1· arm64 · trixieFixed · Fixed:
1.5.1-1dsa · ldns · debian · 13
Observed: