The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return…
Priority LOW 36CWE-19Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · Partial
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return value of the setup_reply function, which allows remote attackers to read process memory and cause a denial of service (out-of-bounds read and crash) via a malformed DNS request.
Why it matters now
EPSS 0.04951 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:thekelleys:dnsmasq:*:rc3:*:*:*:*:*:* | up to 2.73 | Vulnerable | Thekelleys |
| cpe:2.3:o:oracle:solaris:11.2:*:*:*:*:*:*:* | 11.2 | Vulnerable | Oracle |
- cpe:2.3:a:thekelleys:dnsmasq:*:rc3:*:*:*:*:*:* Versions up to 2.73 Vulnerable ·Thekelleys
- cpe:2.3:o:oracle:solaris:11.2:*:*:*:*:*:*:* Versions 11.2 Vulnerable ·Oracle
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 4 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2015-3294
- 2026-10-03 Alias added: GHSA-68qg-cgxp-wxcf
References
Advisory 6
Sources
- CVE-2015-3294 · CVE Program
- CVE-2015-3294 · NVD
- FIRST EPSS
- GHSA-68qg-cgxp-wxcf · GitHub Advisory Database · CC BY 4.0
- CVE-2015-3294 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences