The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components…
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
- 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-119 and the CVSS impact.
Summary
The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not ensure that there is a '\0' character at the end of a certain temporary array, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument.
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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:* | up to 57.1 | Vulnerable | Icu-project |
- cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:* Versions up to 57.1 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-2016-6293
- 2026-10-03 Alias added: GHSA-jw29-rmwq-xp9m
References
More Icu-project International Components For Unicode vulnerabilities
- TI-2014-06761 The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional… CVSS 2.0HIGH 7.5
- TI-2014-06762 The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional… CVSS 2.0HIGH 7.5
- TI-2016-06316 Stack-based buffer overflow in the Locale class in common/locid.cpp in International… CVSS 3.0CRITICAL 9.8
- TI-2014-08077 Stack-based buffer overflow in the ures_getByKeyWithFallback function in… CVSS 3.0CRITICAL 9.8
- TI-2017-10973 Double free in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++… CVSS 3.0CRITICAL 9.8
- TI-2017-12773 The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2016-6293 · CVE Program
- CVE-2016-6293 · NVD
- FIRST EPSS
- GHSA-jw29-rmwq-xp9m · GitHub Advisory Database · CC BY 4.0
- CVE-2016-6293 · 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