CVE-2024-22365

linux-pam (aka Linux PAM) before 1.6.0 allows attackers to cause a denial of service (blocked login process) via mkfifo because the openat call (for protect_dir) lacks O_DIRECTORY.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
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CISA-ADPADP
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 24%
VendorProductVersion
linux-pamlinux-pam
𝑥
< 1.6.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
pam
bullseye
vulnerable
bookworm
no-dsa
buster
no-dsa
bullseye (security)
1.4.0-9+deb11u2
fixed
forky
1.7.0-5
fixed
sid
1.7.0-5
fixed
trixie
1.7.0-5
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pam
mantic
Fixed 1.5.2-6ubuntu1.1
released
lunar
Fixed 1.5.2-5ubuntu1.1
released
jammy
Fixed 1.4.0-11ubuntu2.4
released
focal
Fixed 1.3.1-5ubuntu4.7
released
bionic
Fixed 1.1.8-3.6ubuntu2.18.04.6+esm1
released
xenial
Fixed 1.1.8-3.2ubuntu2.3+esm5
released
trusty
Fixed 1.1.8-1ubuntu2.2+esm4
released
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2024/01/18/3
https://github.com/linux-pam/linux-pam
https://github.com/linux-pam/linux-pam/commit/031bb5a5d0d950253b68138b498dc93be69a64cb
https://github.com/linux-pam/linux-pam/releases/tag/v1.6.0
http://www.openwall.com/lists/oss-security/2024/01/18/3
https://github.com/linux-pam/linux-pam
https://github.com/linux-pam/linux-pam/commit/031bb5a5d0d950253b68138b498dc93be69a64cb
https://github.com/linux-pam/linux-pam/releases/tag/v1.6.0
https://lists.debian.org/debian-lts-announce/2025/09/msg00021.html