CVE-2022-43634
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required…
- Published
- Updated
- Reserved
- Assigned by
- zdi
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dsi_writeinit function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17646.
Timeline
ID reserved
By zdi
- 5 months later
· 5 months later
Published
- 23 months later
· 23 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| zdiCNA (assigner) | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 19.1% · top 2.7% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
References (7)
- https://www.zerodayinitiative.com/advisories/ZDI-23-094/ (opens in a new tab)x_transferred
- https://github.com/Netatalk/Netatalk/pull/186 (opens in a new tab)x_transferred
- FEDORA-2023-aaeb45fb73 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2023-e714897e70 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2023-599faf1b1c (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20230516 [SECURITY] [DLA 3426-1] netatalk security update (opens in a new tab)mailing-listx_transferred
- DSA-5503 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-43634)Record last updated .