CVE-2021-3998

HIGH

GNU Glibc < 2.35 - Information Disclosure

Title source: rule

Description

A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.

References (8)

[Patch] https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb

[Third Party Advisory] https://access.redhat.com/security/cve/CVE-2021-3998

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=2024633

[Third Party Advisory] https://security-tracker.debian.org/tracker/CVE-2021-3998

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20221020-0003/

[Issue Tracking, Patch, Third Party Advisory] https://sourceware.org/bugzilla/show_bug.cgi?id=28770

[Patch] https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03

[Mailing List, Patch, Third Party Advisory] https://www.openwall.com/lists/oss-security/2022/01/24/4

Scores

CVSS v3 7.5

EPSS 0.0014

EPSS Percentile 33.3%

Attack Vector NETWORK

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

Classification

CWE

CWE-125 CWE-252

Status published

Affected Products (7)

gnu/glibc < 2.35

netapp/ontap_select_deploy_administration_utility

netapp/h300s_firmware

netapp/h500s_firmware

netapp/h700s_firmware

netapp/h410s_firmware

netapp/h410c_firmware

Timeline

Published Aug 24, 2022

Tracked Since Feb 18, 2026