Description
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
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 | poco | 1.13.0-6 | — |
| Debian 13 | poco | 1.13.0-6 | — |
| Debian 12 | poco | 1.11.0-3+deb12u1 | — |
| Debian 11 | poco | 1.10.0-6+deb11u2 | DLA-4024-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | poco | No fix yet | — |
| Ubuntu 26.04 LTS | poco | No fix yet | — |
| Ubuntu 25.10 | poco | No fix yet | — |
| Ubuntu 24.04 LTS | poco | No fix yet | — |
| Ubuntu 22.04 LTS | poco | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | poco | No fix yet | — |
| Ubuntu 18.04 LTS | poco | No fix yet | — |
| Ubuntu 16.04 LTS | poco | No fix yet | — |
| Ubuntu 14.04 LTS | poco | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | poco | 1.14.2-1.1 | openSUSE-SU-2025:15322-1 |
Advisories 5
- openSUSE-SU-2025:15322-1 libPocoActiveRecord112-1.14.2-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4024-1 poco - security update Debian Security (DSA / DLA) · Mar 9, 2026
- NCSC-2024-0433 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Nov 12, 2024
- ICSA-24-319-08 Siemens SINEC INS CISA ICS & IT advisories · Nov 12, 2024
- SSA-915275 SSA-915275: Multiple Vulnerabilities in SINEC INS Before V1.0 SP2 Update 3 Siemens ProductCERT · Nov 12, 2024