In Wireshark 2.2.0 to 2.2.5, the DOF dissector could go into an infinite loop, triggered…
Priority LOW 38CWE-835Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-835.
Summary
In Wireshark 2.2.0 to 2.2.5, the DOF dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-dof.c by using a different integer data type and adjusting a return value.
Why it matters now
EPSS 0.02709 86th percentileScored 2026-11-07
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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wireshark:wireshark:2.2.0:*:*:*:*:*:*:* | 2.2.0 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.2.1:*:*:*:*:*:*:* | 2.2.1 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.2.2:*:*:*:*:*:*:* | 2.2.2 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.2.3:*:*:*:*:*:*:* | 2.2.3 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.2.4:*:*:*:*:*:*:* | 2.2.4 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.2.5:*:*:*:*:*:*:* | 2.2.5 | Vulnerable | Wireshark Foundation |
- cpe:2.3:a:wireshark:wireshark:2.2.0:*:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.2.1:*:*:*:*:*:*:* Versions 2.2.1 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.2.2:*:*:*:*:*:*:* Versions 2.2.2 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.2.3:*:*:*:*:*:*:* Versions 2.2.3 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.2.4:*:*:*:*:*:*:* Versions 2.2.4 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.2.5:*:*:*:*:*:*:* Versions 2.2.5 Vulnerable ·Wireshark Foundation
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 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7704
- 2026-10-03 Alias added: GHSA-rq7r-p3cv-r9gr
References
More Wireshark Foundation Wireshark vulnerabilities
- TI-2026-53718 Heap-based Buffer Overflow in Wireshark CVSS 3.1CRITICAL 9.8
- TI-2026-63612 Heap-based Buffer Overflow in Wireshark CVSS 3.1HIGH 8.8
- TI-2024-16149 A buffer overflow in Wireshark before 4.2.0 allows a remote attacker to cause a denial of… CVSS 3.1HIGH 7.5
- TI-2010-00291 Multiple buffer overflows in the LWRES dissector in Wireshark 0.9.15 through 1.0.10 and… CVSS 2.0HIGH 7.5
- TI-2026-63614 Heap-based Buffer Overflow in Wireshark CVSS 3.1HIGH 8.1
- TI-2014-01823 Buffer overflow in the mpeg_read function in wiretap/mpeg.c in the MPEG parser in… CVSS 2.0HIGH 9.3
Sources
- CVE-2017-7704 · CVE Program
- CVE-2017-7704 · NVD
- FIRST EPSS
- GHSA-rq7r-p3cv-r9gr · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7704 · 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