The UNIX IPC layer in WebKit, including WebKitGTK+ prior to 2.16.3, does not properly…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
The UNIX IPC layer in WebKit, including WebKitGTK+ prior to 2.16.3, does not properly validate message size metadata, allowing a compromised secondary process to trigger an integer overflow and subsequent buffer overflow in the UI process. This vulnerability does not affect Apple products.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-1000121
- 2026-10-03 Alias added: GHSA-rv46-gc6r-8ffx
References
More Webkitgtk+ vulnerabilities
- TI-2023-22996 Out-of-bounds write in Apple Safari KEVCVSS 3.1HIGH 8.8
- TI-2023-22374 Improper check for unusual conditions in Apple macOS KEVCVSS 3.1HIGH 8.8
- TI-2023-19062 Apple Safari: Processing web content may lead to arbitrary code execution KEVCVSS 3.1HIGH 8.8
- TI-2023-15726 Type confusion in Apple iOS and iPadOS KEVCVSS 3.1HIGH 8.8
- TI-2023-15664 Use after free in Apple macOS KEVCVSS 3.1HIGH 8.8
- TI-2023-22995 Out-of-bounds read in Apple Safari KEVCVSS 3.1MEDIUM 6.5
Sources
- CVE-2017-1000121 · CVE Program
- CVE-2017-1000121 · NVD
- FIRST EPSS
- GHSA-rv46-gc6r-8ffx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences