CVE-2021-45707

2021-12-2700:00:00

ubuntu.com

cve-2021-45707

rust

unistd::getgrouplist

out-of-bounds write

etc/groups

security vulnerability

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.003

Percentile

70.1%

JSON

An issue was discovered in the nix crate 0.16.0 and later before 0.20.2,
0.21.x before 0.21.2, and 0.22.x before 0.22.2 for Rust.
unistd::getgrouplist has an out-of-bounds write if a user is in more than
16 /etc/groups groups.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchrust-nix< anyUNKNOWN
ubuntu22.04noarchrust-nix< anyUNKNOWN
ubuntu24.04noarchrust-nix< anyUNKNOWN