Description
It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | cryptsetup | Fixed in cryptsetup 2.4.3, cryptsetup 2.3.7 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | cryptsetup | 2:2.4.3-1 | — |
| Debian 13 | cryptsetup | 2:2.4.3-1 | — |
| Debian 12 | cryptsetup | 2:2.4.3-1 | — |
| Debian 11 | cryptsetup | 2:2.3.7-1+deb11u1 | DSA-5070-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | cryptsetup | 2:2.4.3-1ubuntu1 | — |
| Ubuntu 20.04 LTS | cryptsetup | 2:2.2.2-3ubuntu2.4 | USN-5286-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | cryptsetup +5 | 2.3.3-4.el8_5.1 | RHSA-2022:0370 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | cryptsetup-devel | 2.3.3-4.el8_5.1 | ALSA-2022:0370 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | cryptsetup | 2.3.3-4.el8_5.1 | RLSA-2022:0370 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | cryptsetup | 2.3.7-150300.3.5.1 | SUSE-SU-2022:0144-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.1 | cryptsetup | 2.3.7-150300.3.5.1 | SUSE-SU-2022:0144-1 |
| SUSE Package Hub 15 SP4 | varnish | 7.1.0-bp154.2.3.1 | openSUSE-SU-2022:0144-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cryptsetup | 2.4.3-1.1 | openSUSE-SU-2024:11754-1 |
| openSUSE Leap 15.4 | varnish | 7.1.0-bp154.2.3.1 | openSUSE-SU-2022:0144-1 |
| openSUSE Leap 15.3 | cryptsetup | 2.3.7-150300.3.5.1 | openSUSE-SU-2022:0144-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.23 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.22 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.21 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.20 | cryptsetup | 2.4.3-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.18 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.17 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.16 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.15 | cryptsetup | 2.4.3-r0 | — |
| Alpine v3.14 | cryptsetup | 2.3.7-r0 | — |
| Alpine v3.13 | cryptsetup | 2.3.7-r0 | — |
| Alpine v3.12 | cryptsetup | 2.3.7-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | cryptsetup +5 | 2.3.3-4.el8_5.1 | ELSA-2022-0370 |
Advisories 11
- ALSA-2022:0370 Moderate: cryptsetup security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:0370 Red Hat Security Advisory: cryptsetup security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- USN-5286-1 cryptsetup vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5070-1 cryptsetup - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:0370 Moderate: cryptsetup security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2022:0144-1 Security update for cryptsetup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0144-1 Security update for cryptsetup SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11754-1 cryptsetup-2.4.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- ELSA-2022-0370 Moderate: cryptsetup security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 2, 2022
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2031859
- https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes
- https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c
- https://bugzilla.redhat.com/show_bug.cgi?id=2032401
- https://access.redhat.com/security/cve/CVE-2021-4122