unicon-imc2 CCE_pinyin.c and xl_pinyin.c buffer overflow
| uniconimc2-ccepinyin-xlpinyin-bo (35382) |  High Risk |
Description:
The unicon-imc2 library is vulnerable to multiple stack-based buffer overflows in the CCE_pinyin.c and xl_pinyin.c files. By setting an overly long HOME environment variable, a local attacker could exploit this vulnerability using an application linked to the vulnerable library to overflow a buffer and execute arbitrary code on the system with root privileges.
Platforms Affected:
- Debian, Debian Linux 4.0
- unicon, unicon-imc2 3.0.4
Remedy:
Apply patch available from the Debian Bug report logs - #431336. See References.
For Debian GNU/Linux (unicon-imc2):
Refer to DSA-1328 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- Debian Bug report logs - #431336, CVE-2007-2835 : Buffer overflow at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=431336.
- BID-24719: Unicon-imc2 Environment Variable Buffer Overflow Vulnerability
- CVE-2007-2835: Multiple stack-based buffer overflows in (1) CCE_pinyin.c and (2) xl_pinyin.c in ImmModules/cce/ in unicon-imc2 3.0.4, as used by zhcon and other applications, allow local users to gain privileges via a long HOME environment variable.
- DSA-1328: unicon-imc2 -- buffer overflow
- SA25910: UNICON "HOME" Environment Variable Buffer Overflow Vulnerability
Reported:
Jul 01, 2007
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