The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · 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. Impact type from CWE-119 and the CVSS impact.
Summary
The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 does not properly track directionally isolated pieces of text, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly execute arbitrary code via crafted text.
Why it matters now
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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:* | up to 12.1.3 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | up to 8.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | up to 10.10.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | up to 1.0.1 | Vulnerable | Apple |
| cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:* | before 55.1 | Vulnerable | Icu-project |
- cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:* Versions up to 12.1.3 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions up to 8.2 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions up to 10.10.4 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions up to 1.0.1 Vulnerable ·Apple
- cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:* Versions before 55.1 Vulnerable ·Icu-project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Directory Server 8 | Affected | No fix planned: Will not 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 OpenShift Enterprise 2 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2014-8146
- 2026-10-03 Alias added: GHSA-5v3f-x3cw-9pfr
References
Exploit 2
Advisory 13
- https://support.apple.com/HT205221
- http://bugs.icu-project.org/trac/changeset/37162
- https://support.apple.com/HT205212
- APPLE-SA-2015-09-30-3
- GLSA-201507-04
- VU#602540
- https://support.apple.com/HT205267
- APPLE-SA-2015-09-21-1
- APPLE-SA-2015-09-16-3
- https://support.apple.com/HT205213
- APPLE-SA-2015-09-16-1
- DSA-3323
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
Sources
- CVE-2014-8146 · CVE Program
- CVE-2014-8146 · NVD
- FIRST EPSS
- GHSA-5v3f-x3cw-9pfr · GitHub Advisory Database · CC BY 4.0
- CVE-2014-8146 · 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