CVE catalog

CVE-2016-6293

icu: CVE-2016-6293

Severity: Critical · CVSS 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Jul 25, 2016, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 5.02% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	icu	sid	`78.3-2`	fixed
Debian	icu	forky	`78.3-2`	fixed
Debian	icu	trixie	`76.1-4`	fixed
Debian	icu	bookworm	`72.1-3+deb12u1`	fixed
Debian	icu	bookworm-security	`72.1-3+deb12u1`	fixed
Alpine	icu	3.10	`57.1-r1`	fixed
Alpine	icu	3.11	`57.1-r1`	fixed
Alpine	icu	3.12	`57.1-r1`	fixed
Alpine	icu	3.13	`57.1-r1`	fixed
Alpine	icu	3.14	`57.1-r1`	fixed
Alpine	icu	3.15	`57.1-r1`	fixed
Alpine	icu	3.16	`57.1-r1`	fixed
Alpine	icu	3.17	`57.1-r1`	fixed
Alpine	icu	3.18	`57.1-r1`	fixed
Alpine	icu	3.19	`57.1-r1`	fixed
Alpine	icu	3.20	`57.1-r1`	fixed
Alpine	icu	3.21	`57.1-r1`	fixed
Alpine	icu	3.22	`57.1-r1`	fixed
Alpine	icu	3.23	`57.1-r1`	fixed
Alpine	icu	3.24	`57.1-r1`	fixed
Alpine	icu	3.4	`57.1-r1`	fixed
Alpine	icu	3.5	`57.1-r1`	fixed
Alpine	icu	3.6	`57.1-r1`	fixed
Alpine	icu	3.7	`57.1-r1`	fixed
Alpine	icu	3.8	`57.1-r1`	fixed
Alpine	icu	3.9	`57.1-r1`	fixed
Ubuntu	icu	14.04	`4.8.1.1-12ubuntu2`	vulnerable
Ubuntu	icu	14.04	`4.8.1.1-13+nmu1`	vulnerable
Ubuntu	icu	14.04	`4.8.1.1-13+nmu1ubuntu1`	vulnerable
Ubuntu	icu	14.04	`52.1-3`	vulnerable
Ubuntu	icu	14.04	`52.1-3ubuntu0.2`	vulnerable
Ubuntu	icu	14.04	`52.1-3ubuntu0.3`	vulnerable
Ubuntu	icu	14.04	`52.1-3ubuntu0.4`	vulnerable
Ubuntu	icu	14.04	`52.1-3ubuntu0.5`	fixed
Ubuntu	icu	16.04	`55.1-4ubuntu1`	vulnerable
Ubuntu	icu	16.04	`55.1-6ubuntu1`	vulnerable
Ubuntu	icu	16.04	`55.1-7`	vulnerable
Ubuntu	icu	16.04	`55.1-7ubuntu0.1`	fixed
Suse	icu	linux enterprise software development kit 11 sp4	`4.0-47.6.1`	fixed
Suse	icu	linux enterprise server 11 sp4	`4.0-47.6.1`	fixed
Suse	icu	linux enterprise server for sap applications 11 sp4	`4.0-47.6.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	icu	source	sid	`57.1-4`	not yet assigned	Not reported	Not reported
Debian	icu	source	forky	`57.1-4`	not yet assigned	Not reported	Not reported
Debian	icu	source	trixie	`57.1-4`	not yet assigned	Not reported	Not reported
Debian	icu	source	bookworm	`57.1-4`	not yet assigned	Not reported	Not reported
Alpine	icu	apk	3.10	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.11	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.12	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.13	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.14	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.15	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.16	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.17	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.18	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.19	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.20	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.21	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.22	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.23	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.24	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.4	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.5	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.6	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.7	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.8	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Alpine	icu	apk	3.9	`57.1-r1`	Not reported	ALPINE-CVE-2016-6293	Not reported
Ubuntu	icu	deb	14.04	`52.1-3ubuntu0.5`	Not reported	UBUNTU-CVE-2016-6293	Not reported
Ubuntu	icu	deb	16.04	`55.1-7ubuntu0.1`	Not reported	UBUNTU-CVE-2016-6293	Not reported
Suse	icu	rpm	linux enterprise software development kit 11 sp4	`4.0-47.6.1`	Not reported	SUSE-SU-2018:1602-1	Not reported
Suse	icu	rpm	linux enterprise server 11 sp4	`4.0-47.6.1`	Not reported	SUSE-SU-2018:1602-1	Not reported
Suse	icu	rpm	linux enterprise server for sap applications 11 sp4	`4.0-47.6.1`	Not reported	SUSE-SU-2018:1602-1	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[icu-devtools]Fixed
Source package: [icu]
Details (4)
- 72.1-3+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
[icu-doc]Fixed
Source package: [icu]
Details (4)
- 72.1-3+deb12u1 · all · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · all · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · all · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · all · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
[libicu72]Fixed
Source package: [icu]
Details (4)
- 72.1-3+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
[libicu-dev]Fixed
Source package: [icu]
Details (4)
- 72.1-3+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12
- 72.1-3+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · bookworm; dsa · icu · debian · 12

[Debian 13 (Trixie)]

[icu-devtools]Fixed
Source package: [icu]
Details (2)
- 76.1-4 · amd64 · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13
- 76.1-4 · arm64 · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13
[icu-doc]Fixed
Source package: [icu]
Details (2)
- 76.1-4 · all · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13
- 76.1-4 · all · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13
[libicu76]Fixed
Source package: [icu]
Details (2)
- 76.1-4 · amd64 · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13
- 76.1-4 · arm64 · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13
[libicu-dev]Fixed
Source package: [icu]
Details (2)
- 76.1-4 · amd64 · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13
- 76.1-4 · arm64 · trixie
  Fixed · Fixed: 57.1-4
  dsa · icu · debian · 13

Observed: Oct 23, 2026, 5:22:36 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]