CVE-2021-3998

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
redhatCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
VendorProductVersion
gnuglibc
2.33 ≤
𝑥
< 2.35
netappontap_select_deploy_administration_utility
-
netapph300s_firmware
-
netapph500s_firmware
-
netapph700s_firmware
-
netapph410s_firmware
-
netapph410c_firmware
-
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
glibc
bullseye
2.31-13+deb11u11
not-affected
buster
not-affected
stretch
not-affected
bullseye (security)
2.31-13+deb11u10
fixed
bookworm
2.36-9+deb12u8
fixed
bookworm (security)
2.36-9+deb12u7
fixed
sid
2.40-3
fixed
trixie
2.40-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
eglibc
jammy
dne
impish
dne
hirsute
dne
focal
dne
bionic
dne
xenial
dne
trusty
not-affected
glibc
jammy
not-affected
impish
Fixed 2.34-0ubuntu3.2
released
hirsute
ignored
focal
not-affected
bionic
not-affected
xenial
not-affected
Common Weakness Enumeration
References
https://access.redhat.com/security/cve/CVE-2021-3998
https://bugzilla.redhat.com/show_bug.cgi?id=2024633
https://security-tracker.debian.org/tracker/CVE-2021-3998
https://security.netapp.com/advisory/ntap-20221020-0003/
https://sourceware.org/bugzilla/show_bug.cgi?id=28770
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb
https://www.openwall.com/lists/oss-security/2022/01/24/4
https://access.redhat.com/security/cve/CVE-2021-3998
https://bugzilla.redhat.com/show_bug.cgi?id=2024633
https://security-tracker.debian.org/tracker/CVE-2021-3998
https://security.netapp.com/advisory/ntap-20221020-0003/
https://sourceware.org/bugzilla/show_bug.cgi?id=28770
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb
https://www.openwall.com/lists/oss-security/2022/01/24/4