In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the IMAP dissector could crash…
Priority LOW 39CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- 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.
Summary
In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the IMAP dissector could crash, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-imap.c by calculating a line's end correctly.
Why it matters now
EPSS 0.03257 88th 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 · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wireshark:wireshark:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.1:*:*:*:*:*:*:* | 2.0.1 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.2:*:*:*:*:*:*:* | 2.0.2 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.3:*:*:*:*:*:*:* | 2.0.3 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.4:*:*:*:*:*:*:* | 2.0.4 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.5:*:*:*:*:*:*:* | 2.0.5 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.6:*:*:*:*:*:*:* | 2.0.6 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.7:*:*:*:*:*:*:* | 2.0.7 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.8:*:*:*:*:*:*:* | 2.0.8 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.9:*:*:*:*:*:*:* | 2.0.9 | Vulnerable | Wireshark Foundation |
- cpe:2.3:a:wireshark:wireshark:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.2:*:*:*:*:*:*:* Versions 2.0.2 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.3:*:*:*:*:*:*:* Versions 2.0.3 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.4:*:*:*:*:*:*:* Versions 2.0.4 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.5:*:*:*:*:*:*:* Versions 2.0.5 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.6:*:*:*:*:*:*:* Versions 2.0.6 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.7:*:*:*:*:*:*:* Versions 2.0.7 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.8:*:*:*:*:*:*:* Versions 2.0.8 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.9:*:*:*:*:*:*:* Versions 2.0.9 Vulnerable ·Wireshark Foundation
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wireshark:wireshark:2.0.10:*:*:*:*:*:*:* | 2.0.10 | Vulnerable | Wireshark Foundation |
| cpe:2.3:a:wireshark:wireshark:2.0.11:*:*:*:*:*:*:* | 2.0.11 | Vulnerable | Wireshark Foundation |
| 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:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
- cpe:2.3:a:wireshark:wireshark:2.0.10:*:*:*:*:*:*:* Versions 2.0.10 Vulnerable ·Wireshark Foundation
- cpe:2.3:a:wireshark:wireshark:2.0.11:*:*:*:*:*:*:* Versions 2.0.11 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
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
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-2017-7703
- 2026-10-03 Alias added: GHSA-4ghr-g3f7-fh5v
References
Advisory 3
Sources
- CVE-2017-7703 · CVE Program
- CVE-2017-7703 · NVD
- FIRST EPSS
- GHSA-4ghr-g3f7-fh5v · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7703 · Red Hat security data · CC BY 4.0
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