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CVE-2021-3156

Status Candidate

Overview

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

Related Files

Red Hat Security Advisory 2021-0222-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0222-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | cbff7c657cb1ac5160a7a0a1d3c44d1edf4ac5b535f9c878c51d94c1ed9ce2e4
Red Hat Security Advisory 2021-0221-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0221-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | f3c7fa7bb777774353fb17f8c05f76845bb882ab68a96317db73d6485fcb8028
Red Hat Security Advisory 2021-0224-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0224-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | d9477bef6ad3c2f72cf1529701dff67efa549743a33e4a10b03d2f9238b8d657
Red Hat Security Advisory 2021-0227-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0227-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | cb421d482e590cdf0f425ff2054fad50d4448f6c1854535c9cc1577bc4aa774f
Red Hat Security Advisory 2021-0219-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0219-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | 7c2f6fe4adc47d9a971282a7c13b1530485b727c37ed31c33f73be88fb089635
Red Hat Security Advisory 2021-0225-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0225-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | 5c12b02e91d220c9adc9c9f9b75d600281c44f12afdf817f81820930b66a84f2
Red Hat Security Advisory 2021-0218-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0218-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | 3cd24647dcb8ddcc413ede5d14464c3c3117d61eaa37f139c4ea9eeda0535109
Red Hat Security Advisory 2021-0220-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0220-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | 06848d8c71ef6c022761e46bae7a7279bc688b8be83da9b7b7b3770a6e0caa73
Red Hat Security Advisory 2021-0226-01
Posted Jan 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0226-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2021-3156
SHA-256 | ba4d17e359d3e138fc7112849819042848514df314ee5c6009bb43f256a05e03
Ubuntu Security Notice USN-4705-1
Posted Jan 27, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4705-1 - It was discovered that Sudo incorrectly handled memory when parsing command lines. A local attacker could possibly use this issue to obtain unintended access to the administrator account. It was discovered that the Sudo sudoedit utility incorrectly handled checking directory permissions. A local attacker could possibly use this issue to bypass file permissions and determine if a directory exists or not. Various other issues were also addressed.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2021-23239, CVE-2021-3156
SHA-256 | 9b333695ccb46b8a45f17259c0a37c74e099cd2a9241d7e73c503ee60998ba30
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