Description
Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to '\0' in FPMapName in afp_mapname in etc/afpd/directory.c. 2.4.1 and 3.1.19 are also fixed versions.
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 | netatalk | 3.1.18~ds-2 | — |
| Debian 13 | netatalk | 3.1.18~ds-2 | — |
| Debian 11 | netatalk | 3.1.12~ds-8+deb11u2 | DLA-3968-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | netatalk | 3.1.12~ds-9ubuntu0.22.04.4 | USN-7347-1 |
| Ubuntu 20.04 LTS | netatalk | 3.1.12~ds-4ubuntu0.20.04.4 | USN-7347-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | netatalk | 3.1.18~ds-1ubuntu0.1~esm1 | USN-7347-1 |
| Ubuntu Pro 18.04 LTS | netatalk | 2.2.6-1ubuntu0.18.04.2+esm2 | USN-7347-1 |
| Ubuntu Pro 16.04 LTS | netatalk | 2.2.5-1ubuntu0.2+esm2 | USN-7347-1 |
| Ubuntu Pro 14.04 LTS | netatalk | 2.2.2-1ubuntu2.2+esm2 | USN-7347-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | netatalk | 3.1.18-3.25.1 | SUSE-SU-2024:2301-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | netatalk | 3.1.19-r0 | — |
| Alpine v3.23 | netatalk | 3.1.19-r0 | — |
| Alpine v3.22 | netatalk | 3.1.19-r0 | — |
| Alpine v3.21 | netatalk | 3.1.19-r0 | — |
| Alpine v3.20 | netatalk | 3.1.19-r0 | — |
Advisories 3
- USN-7347-1 netatalk vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-3968-1 netatalk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2024:2301-1 Security update for netatalk SUSE / openSUSE Security Updates · Feb 4, 2026