CVE Vulnerability

CVE-2021-3999

A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.openwall.com/lists/oss-security/2022/01/24/4 Exploit Mailing List
https://access.redhat.com/security/cve/CVE-2021-3999 Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=28769 Issue Tracking Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-3999 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2024637 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20221104-0001/ Third Party Advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
Configurations

Configuration 1

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:nfs_plug-in:*:*:*:*:*:vmware_vaai:*:*
Information

Published : 2022-08-24 04:15

Updated : 2023-02-12 11:43

NVD link : CVE-2021-3999

Mitre link : CVE-2021-3999

Products Affected
No products.
CWE
CWE-193

Off-by-one Error