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Debian LTS Advisory DLA-3584-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
September 25, 2023                            https://wiki.debian.org/LTS
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Package        : netatalk
Version        : 3.1.12~ds-3+deb10u4
CVE ID         : CVE-2023-42464
Debian Bug     : 1052087

Florent Saudel and Arnaud Gatignol discovered a Type Confusion    
vulnerability in the Spotlight RPC functions in afpd in Netatalk. 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.

For Debian 10 buster, this problem has been fixed in version
3.1.12~ds-3+deb10u4.

We recommend that you upgrade your netatalk packages.

For the detailed security status of netatalk please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/netatalk

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

Debian LTS: DLA-3584-1: netatalk security update

September 25, 2023
Florent Saudel and Arnaud Gatignol discovered a Type Confusion vulnerability in the Spotlight RPC functions in afpd in Netatalk

Summary


Florent Saudel and Arnaud Gatignol discovered a Type Confusion
vulnerability in the Spotlight RPC functions in afpd in Netatalk. 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.

For Debian 10 buster, this problem has been fixed in version
3.1.12~ds-3+deb10u4.

We recommend that you upgrade your netatalk packages.

For the detailed security status of netatalk please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/netatalk

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
Package : netatalk
Version : 3.1.12~ds-3+deb10u4
CVE ID : CVE-2023-42464
Debian Bug : 1052087

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