CVE catalog
CVE-2009-2957
dnsmasq: CVE-2009-2957
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 15.78% · Oct 25, 2026
Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request.
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 | dnsmasq | sid | 2.93-3 | fixed |
| Debian | dnsmasq | forky | 2.93-3 | fixed |
| Debian | dnsmasq | trixie | 2.91-1+deb13u2 | fixed |
| Debian | dnsmasq | trixie-security | 2.91-1+deb13u1 | fixed |
| Debian | dnsmasq | bookworm | 2.90-4~deb12u2 | fixed |
| Debian | dnsmasq | bookworm-security | 2.90-4~deb12u2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | dnsmasq | source | sid | 2.50-1 | not yet assigned | Not reported | Not reported |
| Debian | dnsmasq | source | forky | 2.50-1 | not yet assigned | Not reported | Not reported |
| Debian | dnsmasq | source | trixie | 2.50-1 | not yet assigned | Not reported | Not reported |
| Debian | dnsmasq | source | bookworm | 2.50-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [dnsmasq]Unknown
Details (4)
2.90-4~deb12u2· all · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· all · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· all · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· all · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- [dnsmasq-base]Unknown
Source package: [dnsmasq]
Details (4)
2.90-4~deb12u2· amd64 · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· amd64 · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- [dnsmasq-base-lua]Unknown
Source package: [dnsmasq]
Details (4)
2.90-4~deb12u2· amd64 · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· amd64 · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- [dnsmasq-utils]Unknown
Source package: [dnsmasq]
Details (4)
2.90-4~deb12u2· amd64 · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookwormFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· amd64 · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookworm-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
[Debian 13 (Trixie)]
- [dnsmasq]Unknown
Details (4)
2.91-1+deb13u1· all · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· all · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· all · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· all · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
- [dnsmasq-base]Unknown
Source package: [dnsmasq]
Details (4)
2.91-1+deb13u1· amd64 · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
- [dnsmasq-base-lua]Unknown
Source package: [dnsmasq]
Details (4)
2.91-1+deb13u1· amd64 · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
- [dnsmasq-utils]Unknown
Source package: [dnsmasq]
Details (4)
2.91-1+deb13u1· amd64 · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixieFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.50-1dsa · dnsmasq · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2009:1238]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2009-2957]
- [https://osv.dev/vulnerability/DSA-1876-1]
- [https://security-tracker.debian.org/tracker/CVE-2009-2957]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]