Description
The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 uses an integer data type that is inconsistent with a header file, which allows remote attackers to cause a denial of service (incorrect malloc followed by invalid free) or possibly execute arbitrary code via crafted text.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txt ↗
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html ↗
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html ↗
- https://security.gentoo.org/glsa/201507-04 ↗
- http://www.kb.cert.org/vuls/id/602540 ↗
- https://support.apple.com/HT205267 ↗
- http://seclists.org/fulldisclosure/2015/May/14 ↗
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html ↗
- http://openwall.com/lists/oss-security/2015/05/05/6 ↗
- https://support.apple.com/HT205213 ↗
- http://www.securityfocus.com/bid/74457 ↗
- http://www.debian.org/security/2015/dsa-3323 ↗
- http://bugs.icu-project.org/trac/changeset/37080 ↗
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html ↗
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html ↗
- https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E ↗