Description
An issue was discovered in tnef before 1.4.13. Four type confusions have been identified in the file_add_mapi_attrs() function. These might lead to invalid read and write operations, controlled by an attacker.
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 | tnef | 1.4.12-1.1 | — |
| Debian 13 | tnef | 1.4.12-1.1 | — |
| Debian 12 | tnef | 1.4.12-1.1 | — |
| Debian 8 | tnef | 1.4.9-1+deb8u1 | DSA-3798-1 |
| Debian 7 | tnef | 1.4.9-1+deb7u1 | DLA-839-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | tnef | 1.4.9-1+deb8u2build0.16.04.1 | — |
| Ubuntu 14.04 LTS | tnef | 1.4.9-1+deb8u2build0.14.04.1 | — |
Advisories 2
- DLA-839-1 tnef - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3798-1 tnef - security update Debian Security (DSA / DLA) · Mar 9, 2026