PT-2014-1962 · International Components For Unicode+3 · Icu+3

Marc Deslauriers · Published 2014-12-31 · Updated 2024-06-15 · CVE-2014-8146

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions International Components for Unicode (ICU) versions prior to 55.1

Description The issue is related to the resolveImplicitLevels function in the Unicode Bidirectional Algorithm implementation, which does not properly track directionally isolated pieces of text. This allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted text. The problem is caused by a heap-based buffer overflow.

Recommendations For versions prior to 55.1, update to version 55.1 or later to resolve the issue. As a temporary workaround, consider restricting the input to the resolveImplicitLevels function to prevent exploitation until a patch is applied.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2016-01660

CVE-2014-8146

DSA-3323-1

MGASA-2015-0286

OPENSUSE-SU-2018_1422-1

OPENSUSE-SU-2024:10006-1

SUSE-SU-2015:1915-1

SUSE-SU-2015_1915-1

SUSE-SU-2016:0324-1

SUSE-SU-2016_0324-1

SUSE-SU-2017:2318-1

SUSE-SU-2017_2318-1

SUSE-SU-2018:1401-1

SUSE-SU-2018:1401-2

SUSE-SU-2018_1401-1

SUSE-SU-2018_1401-2

USN-2605-1

Affected Products

Icu

Suse

Ubuntu

Itunes

References · 161

• 🔥 https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txt · Exploit
• 🔥 http://seclists.org/fulldisclosure/2015/May/14 · Exploit
• 🔥 https://exploit-db.com/exploits/43887 · Exploit
• https://ubuntu.com/security/CVE-2014-8147 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2014-8146 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-3323-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2605-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2014-8146 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2605-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-12102 · Security Note
• https://bdu.fstec.ru/vul/2018-01485 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8147 · Security Note
• http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html · Vendor Advisory
• http://oracle.com/technetwork/topics/security/cpuoct2015-2367953.html · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2014-8146 · Vendor Advisory