Description
A stack-based buffer overflow vulnerability in gross 0.9.3 through 1.x before 1.0.4 allows remote attackers to trigger a denial of service (grossd daemon crash) or potentially execute arbitrary code in grossd via crafted SMTP transaction parameters that cause an incorrect strncat for a log entry.
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 | gross | 1.0.2-4.1 | — |
| Debian 13 | gross | 1.0.2-4.1 | — |
| Debian 12 | gross | 1.0.2-4.1~deb12u1 | — |
| Debian 10 | gross | 1.0.2-4.1~deb10u1 | DLA-3774-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | gross | 1.0.2-4ubuntu0.24.04.1 | USN-6942-1 |
| Ubuntu 22.04 LTS | gross | 1.0.2-4ubuntu0.22.04.1 | USN-6942-1 |
| Ubuntu 20.04 LTS | gross | 1.0.2-4ubuntu0.20.04.1 | USN-6942-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | gross | 1.0.2-4ubuntu0.18.04.1~esm1 | USN-6942-1 |
| Ubuntu Pro 16.04 LTS | gross | 1.0.2-4ubuntu0.16.04.1~esm1 | USN-6942-1 |
Advisories 2
- USN-6942-1 gross vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-3774-1 gross - security update Debian Security (DSA / DLA) · Mar 9, 2026