Description
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the getdirparams method. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-15830.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Netatalk | Netatalk | 3.1.12 | — |
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 | 3.1.13~ds-1 | — |
| Debian 13 | netatalk | 3.1.13~ds-1 | — |
| Debian 11 | netatalk | 3.1.12~ds-8+deb11u1 | DSA-5503-1 |
| Debian 10 | netatalk | 3.1.12~ds-3+deb10u1 | DLA-3426-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | netatalk | 3.1.12~ds-9ubuntu0.22.04.1 | USN-6146-1 |
| Ubuntu 20.04 LTS | netatalk | 3.1.12~ds-4ubuntu0.20.04.1 | USN-6146-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | netatalk | 2.2.6-1ubuntu0.18.04.2+esm1 | USN-6146-1 |
| Ubuntu Pro 16.04 LTS | netatalk | 2.2.5-1ubuntu0.2+esm1 | USN-6146-1 |
| Ubuntu Pro 14.04 LTS | netatalk | 2.2.2-1ubuntu2.2+esm1 | USN-6146-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | netatalk | 3.1.13-r0 | — |
| Alpine v3.23 | netatalk | 3.1.13-r0 | — |
| Alpine v3.22 | netatalk | 3.1.13-r0 | — |
| Alpine v3.21 | netatalk | 3.1.13-r0 | — |
| Alpine v3.20 | netatalk | 3.1.13-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | netatalk | 3.1.13-r0 | — |
| Alpine v3.18 | netatalk | 3.1.13-r0 | — |
| Alpine v3.17 | netatalk | 3.1.13-r0 | — |
| Alpine v3.16 | netatalk | 3.1.13-r0 | — |
Advisories 3
- USN-6146-1 netatalk vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- DSA-5503-1 netatalk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3426-1 netatalk - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
- https://www.zerodayinitiative.com/advisories/ZDI-22-528/
- [debian-lts-announce] 20230516 [SECURITY] [DLA 3426-1] netatalk security update mailing-list
- [debian-lts-announce] 20230813 [SECURITY] [DLA 3426-3] netatalk regression update mailing-list
- DSA-5503 vendor-advisory
- GLSA-202311-02 vendor-advisory