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OpenAdvisories

Description

A timing side-channel vulnerability has been discovered in the opencryptoki package while processing RSA PKCS#1 v1.5 padded ciphertexts. This flaw could potentially enable unauthorized RSA ciphertext decryption or signing, even without access to the corresponding private key.

Affected products

VendorProductAffectedFixed
— opencryptoki 3.0.0 – < 3.23.0 3.23.0
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support — —
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support — —
Red Hat Red Hat Enterprise Linux 9 — —
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support — —
Red Hat Red Hat Enterprise Linux 6 — —
Red Hat Red Hat Enterprise Linux 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.

ReleasePackageFixed inAdvisory
Debian 14 opencryptoki 3.23.0+dfsg-0.1 —
Debian 13 opencryptoki 3.23.0+dfsg-0.1 —
Debian 12 opencryptoki No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 opencryptoki No fix yet —
Ubuntu 26.04 LTS opencryptoki No fix yet —
Ubuntu 25.10 opencryptoki No fix yet —
Ubuntu 24.04 LTS opencryptoki No fix yet —
Ubuntu 22.04 LTS opencryptoki No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS opencryptoki No fix yet —
Ubuntu 18.04 LTS opencryptoki No fix yet —
Ubuntu 16.04 LTS opencryptoki No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 opencryptoki +7 3.21.0-9.el9_3 RHSA-2024:1239
RHEL 8 opencryptoki +8 3.21.0-10.el8_9 RHSA-2024:1608
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 9.2 EUS opencryptoki +7 3.19.0-3.el9_2 RHSA-2024:1856
RHEL 8.8 EUS opencryptoki +8 3.19.0-3.el8_8 RHSA-2024:1411
RHEL 8.6 EUS opencryptoki +8 3.17.0-6.el8_6 RHSA-2024:1992

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 opencryptoki +7 3.21.0-9.el9_3.alma.1 ALSA-2024:1239
AlmaLinux 8 opencryptoki +8 3.21.0-10.el8_9.alma.1 ALSA-2024:1608

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 opencryptoki 3.21.0-10.el8_9 RLSA-2024:1608
ReleasePackageFixed inAdvisory
SLES 15 SP5 openCryptoki 3.23.0-150500.3.3.13 SUSE-SU-2024:1447-1
SLES 12 SP5 openCryptoki 3.17.0-5.9.2 SUSE-SU-2024:2298-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 12 SP5 openCryptoki 3.17.0-5.9.2 SUSE-SU-2024:2298-1
SLE Micro 5.5 openCryptoki 3.23.0-150500.3.3.13 SUSE-SU-2024:1447-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed openCryptoki 3.23.0-4.1 openSUSE-SU-2024:14195-1
openSUSE Leap 15.5 openCryptoki 3.23.0-150500.3.3.13 SUSE-SU-2024:1447-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 opencryptoki 3.24.0-3 —
Azure Linux 2 (CBL-Mariner) opencryptoki No fix yet —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 opencryptoki +4 3.21.0-9.el9_3 ELSA-2024-1239
Oracle Linux 8 opencryptoki +5 3.21.0-10.el8_9 ELSA-2024-1608

Advisories 15

References