USN-6940-1: snapd vulnerabilities

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Neil McPhail discovered that snapd did not properly restrict writes to the
$HOME/bin path in the AppArmor profile for snaps using the home plug. An
attacker who could convince a user to install a malicious snap could use this
vulnerability to escape the snap sandbox. (CVE-2024-1724)

Zeyad Gouda discovered that snapd failed to properly check the file type when
extracting a snap. An attacker who could convince a user to install a malicious
snap containing non-regular files could then cause snapd to block indefinitely
while trying to read from such files and cause a denial of
service. (CVE-2024-29068)

Zeyad Gouda discovered that snapd failed to properly check the destination of
symbolic links when extracting a snap. An attacker who could convince a user to
install a malicious snap containing crafted symbolic links could then cause
snapd to write out the contents of the symbolic link destination into a
world-readable directory. This in-turn could allow a local unprivileged user to
gain access to privileged information. (CVE-2024-29069)

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ZDI-24-1043: (0Day) (Pwn2Own) Pioneer DMH-WT7600NEX Media Service Improper Handling of Exceptional Conditions Denial-of-Service Vulnerability

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This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Pioneer DMH-WT7600NEX devices. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 4.3. The following CVEs are assigned: CVE-2024-23930.

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ZDI-24-1044: (0Day) (Pwn2Own) Pioneer DMH-WT7600NEX Telematics Directory Traversal Arbitrary File Creation Vulnerability

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This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Pioneer DMH-WT7600NEX devices. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The ZDI has assigned a CVSS rating of 7.3. The following CVEs are assigned: CVE-2024-23929.

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