USN-6940-1 snapd vulnerabilities

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...

Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : snapd vulnerabilities (USN-6940-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6940-1 advisory. Neil McPhail discovered that snapd did not properly restrict writes to the $HOME/bin path in the AppArmor profile for snaps using...

Symbolic Link Privilege Escalation

github.com/snapcore/snapd is vulnerable to Symbolic Link Privilege Escalation. The vulnerability is due improper symbolic link destinations path checks during snap extraction, which allows an attacker to cause snapd to write contents to a world-readable directory and potentially expose privileged...

Denial Of Service (DoS)

github.com/snapcore/snapd is vulnerable to Denial of Service DoS. The vulnerability is due to improper file type checking when extracting snaps, allowing malicious snaps containing non-regular files to cause snapd to block indefinitely and result in a Denial of Service...

CVE-2024-29069

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

GHSA-4MH8-9689-38VR snapd failed to restrict writes to the $HOME/bin path

In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap whic...

snapd failed to properly check the destination of symbolic links when extracting a snap

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

GHSA-64JH-CJWC-W8Q6 snapd failed to properly check the file type when extracting a snap

In snapd versions prior to 2.62, snapd failed to properly check the file type when extracting a snap. The snap format is a squashfs file-system image and so can contain files that are non-regular files such as pipes or sockets etc. Various file entries within the snap squashfs image such as icons...

GHSA-69P6-GP5X-J269 snapd failed to properly check the destination of symbolic links when extracting a snap

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

snapd failed to restrict writes to the $HOME/bin path

In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap whic...

snapd failed to properly check the file type when extracting a snap

In snapd versions prior to 2.62, snapd failed to properly check the file type when extracting a snap. The snap format is a squashfs file-system image and so can contain files that are non-regular files such as pipes or sockets etc. Various file entries within the snap squashfs image such as icons...

CVE-2024-29069

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

DEBIAN-CVE-2024-29069

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

DEBIAN-CVE-2024-29068

In snapd versions prior to 2.62, snapd failed to properly check the file type when extracting a snap. The snap format is a squashfs file-system image and so can contain files that are non-regular files such as pipes or sockets etc. Various file entries within the snap squashfs image such as icons...

CVE-2024-29068

In snapd versions prior to 2.62, snapd failed to properly check the file type when extracting a snap. The snap format is a squashfs file-system image and so can contain files that are non-regular files such as pipes or sockets etc. Various file entries within the snap squashfs image such as icons...

CVE-2024-1724

In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap whic...

CVE-2024-29069 snapd will follow archived symlinks when unpacking a filesystem

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

CVE-2024-29069 snapd will follow archived symlinks when unpacking a filesystem

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

CVE-2024-29069 snapd will follow archived symlinks when unpacking a filesystem

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image such as icons and...

CVE-2024-29069

In CVE-2024-29069, snapd versions prior to 2.62 fail to validate the destination of symbolic links when extracting a snap from a squashfs image. This can allow a malicious snap to cause snapd to write the linked destination’s contents into a world-readable directory, enabling an unprivileged user...