USN-5292-3: snapd vulnerabilities

USN-5292-1 fixed several vulnerabilities in snapd. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: James Troup discovered that snap did not properly manage the permissions for the snap directories. A local attacker could possibly...

USN-5292-2: snapd vulnerabilities

USN-5292-1 fixed vulnerabilities in snapd. This update provides the corresponding update for the riscv64 architecture. Original advisory details: James Troup discovered that snap did not properly manage the permissions for the snap directories. A local attacker could possibly use this issue to...

USN-5292-2 snapd vulnerabilities

USN-5292-1 fixed vulnerabilities in snapd. This update provides the corresponding update for the riscv64 architecture. Original advisory details: James Troup discovered that snap did not properly manage the permissions for the snap directories. A local attacker could possibly use this issue to...

Unspecified vulnerability in snapd

Snapd is an open source, cross-platform package management tool. snapd suffers from a security vulnerability that can be exploited by local attackers to cause snapd to restrict the execution of other arbitrary binaries, thereby gaining privileged escalation...

Vulnerabilities fixed in snapd

Several vulnerabilities have been fixed in Canonical's snapd. The vulnerabilities allow a local malicious person to launch attacks execute attacks that result in the following categories of damage: Circumvention of security measure. Remote code execution Administrator/Root privileges Access to...

Ubuntu 16.04 ESM : snapd vulnerabilities (USN-5292-3)

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5292-3 advisory. USN-5292-1 fixed several vulnerabilities in snapd. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Tenable has...

snapd competition condition issue vulnerability

Snapd is an open source, cross-platform package management tool. snapd is vulnerable to a contention issue, which can be exploited by local attackers to gain root privileges and execute arbitrary code to gain privilege escalation by binding to mount their own content in snap's private mount...

Ubuntu 20.04 LTS : snapd vulnerabilities (USN-5292-2)

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5292-2 advisory. USN-5292-1 fixed vulnerabilities in snapd. This update provides the corresponding update for the riscv64 architecture. Tenable has extracted the precedin...

DSA-5080-1 snapd - security update

Bulletin has no description...

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 snapd versions...

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, 2.54.3+20.04 and...

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 snapd versions...

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, 2.54.3+20.04 and...

CVE-2021-44731

A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitra...

CVE-2021-3155

snapd 2.54.2 and earlier created /snap directories in user home directories without specifying owner-only permissions. This could allow a local attacker to read information that should have been private. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1...

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 snapd versions...

DEBIAN-CVE-2021-44731

A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitra...

DEBIAN-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 snapd versions...

CVE-2021-44731

A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitra...

CVE-2021-3155

snapd 2.54.2 and earlier created /snap directories in user home directories without specifying owner-only permissions. This could allow a local attacker to read information that should have been private. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1...