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canonical snapd vulnerabilities and exploits
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7.5
CVSSv3
CVE-2019-11503
snap-confine as included in snapd prior to 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."
Canonical Snapd
7.5
CVSSv3
CVE-2019-11502
snap-confine in snapd prior to 2.38 incorrectly set the ownership of a snap application to the uid and gid of the first calling user. Consequently, that user had unintended access to a private /tmp directory.
Canonical Snapd
5.5
CVSSv3
CVE-2021-3155
snapd 2.54.2 and previous versions created ~/snap directories in user home directories without specifying owner-only permissions. This could allow a local malicious user to read information that should have been private. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54...
Canonical Snapd
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 21.10
1 Article
6.8
CVSSv3
CVE-2020-11933
cloud-init as managed by snapd on Ubuntu Core 16 and Ubuntu Core 18 devices was run without restrictions on every boot, which a physical attacker could exploit by crafting cloud-init user-data/meta-data via external media to perform arbitrary changes on the device to bypass inten...
Canonical Snapd
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.10
Canonical Ubuntu Linux 20.04
7.5
CVSSv3
CVE-2019-7303
A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host. The seccomp rules were generated to match 64-bit ioctl(2) commands on a 64-bit platform; however, the Linux kernel only...
Canonical Snapd
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.10
1 EDB exploit
9.8
CVSSv3
CVE-2019-7304
Canonical snapd before version 2.37.1 incorrectly performed socket owner validation, allowing an malicious user to run arbitrary commands as root. This issue affects: Canonical snapd versions before 2.37.1.
Canonical Snapd
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 18.10
2 EDB exploits
8 Github repositories
1 Article
7
CVSSv3
CVE-2022-3328
Race condition in snap-confine's must_mkdir_and_open_with_perms()
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 22.04
Canonical Ubuntu Linux 22.10
Canonical Snapd
1 Github repository
7.8
CVSSv3
CVE-2021-4120
snapd 2.54.2 fails to perform sufficient validation of snap content interface and layout paths, resulting in the ability for snaps to inject arbitrary AppArmor policy rules via malformed content interface and layout declarations and hence escape strict snap confinement. Fixed in ...
Canonical Snapd
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 21.10
Fedoraproject Fedora 34
Fedoraproject Fedora 35
1 Article
10
CVSSv3
CVE-2023-1523
Using the TIOCLINUX ioctl request, a malicious snap could inject contents into the input of the controlling terminal which could allow it to cause arbitrary commands to be executed outside of the snap sandbox after the snap exits. Graphical terminal emulators like xterm, gnome-te...
Canonical Snapd
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 22.04
Canonical Ubuntu Linux 22.10
Canonical Ubuntu Linux 23.04
8.8
CVSSv3
CVE-2021-44730
snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2...
Canonical Snapd
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 21.10
Fedoraproject Fedora 34
Fedoraproject Fedora 35
Debian Debian Linux 10.0
Debian Debian Linux 11.0
CVSSv3
CVSSv2
CVSSv3
VMScore
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privilege
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