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CVE-2023-42464

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x...

9.8 CriticalFix available

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.10%Up 2.0 points since Sep 22, 2023
90%50%10%1%

What each source reports

NVD Score used 9.8

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
CVE-2023-42464
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-843
Updated
2026-11-02
CVE List No score

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
CVE-2023-42464
Updated
2026-11-02
EUVDEUVD-2023-46904 No score

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
EUVD-2023-46904
Updated
2026-11-03
GitHub AdvisoriesGHSA-qv4g-5q5g-2vc3 9.8

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x...

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
GHSA-qv4g-5q5g-2vc3
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-843
Updated
2026-11-02
OSVALPINE-CVE-2023-42464 9.8

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
ALPINE-CVE-2023-42464
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSVDEBIAN-CVE-2023-42464 9.8

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
DEBIAN-CVE-2023-42464
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVUBUNTU-CVE-2023-42464 9.8

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
UBUNTU-CVE-2023-42464
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV No score

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Record
CVE-2023-42464
Updated
2026-11-02
OSVSUSE-SU-2023:3779-1 No score

Security update for netatalk

This update for netatalk fixes the following issues:

  • CVE-2023-42464: Fixed afpd daemon vulnerable to type confusion (bsc#1214744).
Record
SUSE-SU-2023:3779-1
Updated
2026-11-02
OSVUSN-6552-1 No score

netatalk vulnerability

Florent Saudel and Arnaud Gatignol discovered that Netatalk incorrectly handled certain specially crafted Spotlight requests. A remote attacker could possibly use this issue to cause heap corruption and execute arbitrary code. (CVE-2023-42464)

Record
USN-6552-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
netatalk
Alpine:v3.18
3.1 up to 3.1.17-r0
3.1.17-r0
netatalk
Alpine:v3.19
3.1 up to 3.1.17-r0
3.1.17-r0
netatalk
Alpine:v3.20
3.1 up to 3.1.17-r0
3.1.17-r0
netatalk
Alpine:v3.21
3.1 up to 3.1.17-r0
3.1.17-r0
netatalk
Alpine:v3.22
3.1 up to 3.1.17-r0
3.1.17-r0
netatalk
Alpine:v3.23
3.1 up to 3.1.17-r0
3.1.17-r0
netatalk
Alpine:v3.24
3.1 up to 3.1.17-r0
3.1.17-r0
netatalk
Debian:13
before 3.1.17~ds-1
3.1.17~ds-1
netatalk
Debian:14
before 3.1.17~ds-1
3.1.17~ds-1
netatalk
Debian:10
before 3.1.12~ds-3+deb10u4, plus listed versions
3.1.12~ds-33.1.12~ds-3+deb10u13.1.12~ds-3+deb10u23.1.12~ds-3+deb10u3
3.1.12~ds-3+deb10u4
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Affected packages
PackageAffectedFixed
netatalk
Debian:11
From an advisory covering 10 CVEs
before 3.1.12~ds-8+deb11u1, plus listed versions
3.1.12~ds-8
3.1.12~ds-8+deb11u1
netatalk
SUSE:Linux Enterprise Software Development Kit 12 SP5
before 3.1.0-3.19.1
3.1.0-3.19.1
netatalk
SUSE:Linux Enterprise Workstation Extension 12 SP5
before 3.1.0-3.19.1
3.1.0-3.19.1
netatalk
Ubuntu:20.04:LTS
before 3.1.12~ds-4ubuntu0.20.04.3, plus listed versions
3.1.12~ds-33.1.12~ds-43.1.12~ds-4ubuntu0.20.04.1
3.1.12~ds-4ubuntu0.20.04.3
netatalk
Ubuntu:22.04:LTS
before 3.1.12~ds-9ubuntu0.22.04.3, plus listed versions
3.1.12~ds-93.1.12~ds-9build13.1.12~ds-9ubuntu0.22.04.1
3.1.12~ds-9ubuntu0.22.04.3

History

History
RecordedChangedSources
affected, facts
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-42464 is a critical vulnerability (CVSS 9.8) in Netatalk, published September 16, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.10%, the 81st percentile. Fixed in netatalk 3.1.17-r0.

References

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