Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | unicon | 3.0.4-12 | — |
| Debian 13 | unicon | 3.0.4-12 | — |
| Debian 12 | unicon | 3.0.4-12 | — |
| Debian 4.0 | unicon | 3.0.4-11etch1 | DSA-1328-1 |
Advisories 1
- DSA-1328-1 unicon - buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=431336
- uniconimc2-ccepinyin-xlpinyin-bo(35382) vdb-entry
- 25912 third-party-advisory
- 24719 vdb-entry
- 25910 third-party-advisory
- DSA-1328 vendor-advisory
- 37794 vdb-entry