Security readout for executives and security teams
Plain-English summary
Netatalk versions through 3.1.13 can mishandle a crafted .appl file and overflow heap memory. On some platforms, including FreeBSD-based TrueNAS deployments, this may allow code execution with root-level impact. Treat exposed AFP file-sharing systems as a priority to identify and update.
Executive priority
Prioritize remediation for internet-reachable or broadly accessible file-sharing systems. The business risk is unauthorized code execution on storage infrastructure, potentially with root privileges, which can affect confidentiality, integrity, and availability of shared data.
Technical view
CVE-2022-45188 is a CWE-122 heap-based buffer overflow in Netatalk afp_getappl triggered by a crafted .appl file. The CVSS 3.1 score is 7.8 with local attack vector and required user interaction, but the CVE description notes remote root impact on some platforms.
Likely exposure
Exposure is most likely on systems running Netatalk through 3.1.13, especially AFP file-sharing hosts, NAS appliances, FreeBSD-based TrueNAS environments, and Linux distributions that shipped vulnerable netatalk packages.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Public technical analysis exists, so defenders should assume exploit knowledge is available, but not claim in-the-wild exploitation from this bundle.
Researcher notes
The CVSS vector lists local access and user interaction, while the CVE text describes remote root on some platforms. Validate platform-specific attack conditions before ranking exposure. Avoid assuming all Netatalk deployments have identical privilege or reachability impact.
Mitigation direction
- Upgrade Netatalk to a fixed release such as 3.1.14 or later where available.
- Apply distribution security updates from Debian, Fedora, Gentoo, or the relevant vendor.
- Restrict AFP access to trusted networks while patching is pending.
- Review NAS and TrueNAS vendor guidance for bundled Netatalk fixes.
- Disable AFP where it is no longer required.
Validation and detection
- Inventory hosts and appliances running Netatalk or AFP services.
- Confirm installed Netatalk versions are later than 3.1.13 or vendor-patched.
- Check whether AFP is reachable from untrusted networks.
- Verify Debian, Fedora, Gentoo, or appliance security updates were applied.
- Review file-sharing logs for unusual AFP activity around .appl files.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-122: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-45188 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://sourceforge.net/projects/netatalk/files/netatalk/CVE reference
- https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.htmlCVE reference
- https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.14.htmlCVE reference
- https://rushbnt.github.io/bug%20analysis/netatalk-0day/CVE reference
- FEDORA-2023-aaeb45fb73CVE reference · vendor-advisory
- FEDORA-2023-e714897e70CVE reference · vendor-advisory
- FEDORA-2023-599faf1b1cCVE reference · vendor-advisory
- [debian-lts-announce] 20230516 [SECURITY] [DLA 3426-1] netatalk security updateCVE reference · mailing-list
- DSA-5503CVE reference · vendor-advisory
- GLSA-202311-02CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.