Skip to content
OpenAdvisories

Description

Issue summary: During processing of a crafted CMS EnvelopedData message
with KeyTransportRecipientInfo a NULL pointer dereference can happen.

Impact summary: Applications that process attacker-controlled CMS data may
crash before authentication or cryptographic operations occur resulting in
Denial of Service.

When a CMS EnvelopedData message that uses KeyTransportRecipientInfo with
RSA-OAEP encryption is processed, the optional parameters field of
RSA-OAEP SourceFunc algorithm identifier is examined without checking
for its presence. This results in a NULL pointer dereference if the field
is missing.

Applications and services that call CMS_decrypt() on untrusted input
(e.g., S/MIME processing or CMS-based protocols) are vulnerable.

The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this
issue, as the affected code is outside the OpenSSL FIPS module boundary.

Affected products

VendorProductAffectedFixed
OpenSSL OpenSSL 3.6.0 – < 3.6.2, 3.5.0 – < 3.5.6, 3.4.0 – < 3.4.5, 3.3.0 – < 3.3.7, 3.0.0 – < 3.0.20, 1.1.1 – < 1.1.1zg, 1.0.2 – < 1.0.2zp 3.6.2

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 openssl 3.6.2-1 —
Debian 13 openssl 3.5.5-1~deb13u2 —
Debian 12 openssl 3.0.19-1~deb12u2 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 edk2 +1 No fix yet —
Ubuntu 26.10 openssl 3.5.5-1ubuntu3 —
Ubuntu 26.04 LTS edk2 +1 No fix yet —
Ubuntu 26.04 LTS openssl 3.5.5-1ubuntu3 —
Ubuntu 25.10 edk2 No fix yet —
Ubuntu 25.10 openssl 3.5.3-1ubuntu3.3 —
Ubuntu 24.04 LTS edk2 No fix yet —
Ubuntu 24.04 LTS openssl 3.0.13-0ubuntu3.9 —
Ubuntu 22.04 LTS edk2 No fix yet —
Ubuntu 22.04 LTS openssl 3.0.2-0ubuntu1.23 —
Show 13 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro FIPS 20.04 LTS openssl No fix yet —
Ubuntu Pro FIPS 18.04 LTS openssl No fix yet —
Ubuntu Pro FIPS 16.04 LTS openssl No fix yet —
Ubuntu Pro FIPS-updates 24.04 LTS openssl-fips 3.0.13-0ubuntu3.12+Fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS openssl 3.0.2-0ubuntu1.23+Fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS openssl-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS openssl 1.1.1f-1ubuntu2.fips.24.3 —
Ubuntu Pro FIPS-updates 18.04 LTS openssl 1.1.1-1ubuntu2.fips.2.1~18.04.23.8 —
Ubuntu Pro FIPS-updates 16.04 LTS openssl 1.0.2g-1ubuntu4.fips.4.20.15 —
Ubuntu Pro FIPS-preview 22.04 LTS openssl +1 No fix yet —
Ubuntu Pro 22.04 LTS nodejs No fix yet —
Ubuntu Pro 20.04 LTS edk2 No fix yet —
Ubuntu Pro 20.04 LTS openssl 1.1.1f-1ubuntu2.24+esm3 —
Ubuntu Pro 18.04 LTS edk2 +1 No fix yet —
Ubuntu Pro 18.04 LTS openssl 1.1.1-1ubuntu2.1~18.04.23+esm8 —
Ubuntu Pro 18.04 LTS openssl1.0 1.0.2n-1ubuntu5.13+esm4 —
Ubuntu Pro 16.04 LTS edk2 +1 No fix yet —
Ubuntu Pro 16.04 LTS openssl 1.0.2g-1ubuntu4.20+esm15 —
ReleasePackageFixed inAdvisory
RHEL 10 edk2 +4 20251114-5.el10_2.2 RHSA-2026:39297
RHEL 10 openssl +3 1:3.5.5-3.el10_2 RHSA-2026:22314
RHEL 9 compat-openssl11 1:1.1.1k-5.el9_8.3 RHSA-2026:22313
RHEL 9 openssl +3 1:3.5.5-3.el9_8 RHSA-2026:22312
RHEL 8 compat-openssl10 1:1.0.2o-4.el8_10.2 RHSA-2026:22315
RHEL 8 openssl +3 1:1.1.1k-17.el8_6 RHSA-2026:38503
Show 12 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS openssl +3 1:3.2.2-16.el10_0.7 RHSA-2026:71542
RHEL 9.6 EUS compat-openssl11 1:1.1.1k-5.el9_6.3 RHSA-2026:35869
RHEL 9.6 EUS openssl +3 1:3.2.2-7.el9_6.4 RHSA-2026:83617
RHEL 9.4 E4S compat-openssl11 1:1.1.1k-5.el9_4.3 RHSA-2026:39009
RHEL 9.4 E4S openssl +1 1:3.0.7-29.el9_4.3 RHSA-2026:84573
RHEL 9.2 E4S compat-openssl11 1:1.1.1k-4.el9_2.2 RHSA-2026:39012
RHEL 9.2 E4S openssl +1 1:3.0.7-18.el9_2.4 RHSA-2026:84572
RHEL 8.8 TUS compat-openssl10 1:1.0.2o-4.el8_8.1 RHSA-2026:36217
RHEL 8.8 TUS openssl +3 1:1.1.1k-17.el8_6 RHSA-2026:38805
RHEL 8.8 E4S compat-openssl10 1:1.0.2o-4.el8_8.1 RHSA-2026:36217
RHEL 8.8 E4S openssl +3 1:1.1.1k-17.el8_6 RHSA-2026:38805
RHEL 8.6 EUS Long Life compat-openssl10 1:1.0.2o-4.el8_6.1 RHSA-2026:44480
RHEL 8.6 EUS Long Life openssl +3 1:1.1.1k-17.el8_6 RHSA-2026:38804
RHEL 8.6 AUS compat-openssl10 1:1.0.2o-4.el8_6.1 RHSA-2026:44480
RHEL 8.6 AUS openssl +3 1:1.1.1k-17.el8_6 RHSA-2026:38804
RHEL 8.4 EUS Long Life compat-openssl10 1:1.0.2o-3.el8_4.1 RHSA-2026:47096
RHEL 8.4 EUS Long Life openssl +3 1:1.1.1g-18.el8_4.3 RHSA-2026:43513
RHEL 8.4 AUS compat-openssl10 1:1.0.2o-3.el8_4.1 RHSA-2026:47096
RHEL 8.4 AUS openssl +3 1:1.1.1g-18.el8_4.3 RHSA-2026:43513
RHEL 7 ELS openssl +4 1:1.0.2k-26.el7_9.2 RHSA-2026:58563
Red Hat Hardened Images 1 openssl +5 3.5.6-0.1.hum1 RHSA-2026:14217, RHSA-2026:7261
Red Hat Hardened Images 1 openssl-fips-provider-upstream 3.5.6-0.3.hum1 RHSA-2026:14217

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 edk2-ovmf +3 20251114-5.el10_2.2 ALSA-2026:39297
AlmaLinux 10 openssl +3 1:3.5.5-3.el10_2.alma.1 ALSA-2026:22314
AlmaLinux 9 compat-openssl11 1:1.1.1k-5.el9_8.3 ALSA-2026:22313
AlmaLinux 9 openssl +3 1:3.5.5-3.el9_8 ALSA-2026:22312
AlmaLinux 8 compat-openssl10 1:1.0.2o-4.el8_10.2 ALSA-2026:22315
AlmaLinux 8 openssl +3 1:1.1.1k-17.el8_6 ALSA-2026:38503

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 edk2 20251114-5.el10_2.2 RLSA-2026:39297
Rocky Linux 10 openssl 1:3.5.5-3.el10_2 RLSA-2026:22314
Rocky Linux 9 compat-openssl11 1:1.1.1k-5.el9_8.3 RLSA-2026:22313
Rocky Linux 9 openssl 1:3.5.5-3.el9_8 RLSA-2026:22312
Rocky Linux 8 compat-openssl10 1:1.0.2o-4.el8_10.2 RLSA-2026:22315
Rocky Linux 8 openssl 1:1.1.1k-17.el8_10 RLSA-2026:38503
ReleasePackageFixed inAdvisory
SLES 15 SP7 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLES 15 SP7 openssl-1_1 1.1.1w-150700.11.16.1 SUSE-SU-2026:1386-1
SLES 15 SP7 openssl-3 3.2.3-150700.5.31.1 SUSE-SU-2026:1375-1
SLES 15 SP6 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLES 15 SP6 openssl-1_1 1.1.1w-150600.5.26.2 SUSE-SU-2026:1577-1
SLES 15 SP6 openssl-3 3.1.4-150600.5.50.1 SUSE-SU-2026:1605-1
SLES 15 SP5 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLES 15 SP5 openssl-1_1 1.1.1l-150500.17.54.1 SUSE-SU-2026:1550-1
SLES 15 SP4 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLES 15 SP4 openssl-1_1 1.1.1l-150400.7.93.1 SUSE-SU-2026:1562-1
SLES 15 SP4 openssl-3 3.0.8-150400.4.84.1 SUSE-SU-2026:1429-1
SLES 12 SP5 openssl-1_0_0 1.0.2p-3.112.1 SUSE-SU-2026:3272-1
SLES 12 SP5 openssl-1_1 1.1.1d-2.128.1 SUSE-SU-2026:1549-1
Show 13 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 openssl-3 3.5.0-160000.7.1 SUSE-SU-2026:21186-1
SLES for SAP 15 SP6 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLES for SAP 15 SP6 openssl-1_1 1.1.1w-150600.5.26.2 SUSE-SU-2026:1577-1
SLES for SAP 15 SP6 openssl-3 3.1.4-150600.5.50.1 SUSE-SU-2026:1605-1
SLES for SAP 15 SP5 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLES for SAP 15 SP5 openssl-1_1 1.1.1l-150500.17.54.1 SUSE-SU-2026:1550-1
SLES for SAP 15 SP4 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLES for SAP 15 SP4 openssl-1_1 1.1.1l-150400.7.93.1 SUSE-SU-2026:1562-1
SLES for SAP 15 SP4 openssl-3 3.0.8-150400.4.84.1 SUSE-SU-2026:1429-1
SLES 16.0 openssl-3 3.5.0-160000.7.1 SUSE-SU-2026:21186-1
SLE Micro 6.2 openssl-3 3.5.0-160000.7.1 SUSE-SU-2026:21107-1
SLE Micro 6.1 openssl-3 3.1.4-slfo.1.1_10.1 SUSE-SU-2026:22132-1
SLE Micro 6.0 openssl-3 3.1.4-13.1 SUSE-SU-2026:21244-1
SLE Micro 5.5 openssl-1_1 1.1.1l-150500.17.54.1 SUSE-SU-2026:1550-1
SLE Micro 5.4 openssl-1_1 1.1.1l-150400.7.93.1 SUSE-SU-2026:1562-1
SLE Micro 5.4 openssl-3 3.0.8-150400.4.84.1 SUSE-SU-2026:1429-1
SLE Micro 5.3 openssl-1_1 1.1.1l-150400.7.93.1 SUSE-SU-2026:1562-1
SLE Micro 5.3 openssl-3 3.0.8-150400.4.84.1 SUSE-SU-2026:1429-1
SLE HPC 15 SP5 openssl-1_1 1.1.1l-150500.17.54.1 SUSE-SU-2026:1550-1
SLE HPC 15 SP4 openssl-1_0_0 1.0.2p-150000.3.111.2 SUSE-SU-2026:3443-1
SLE HPC 15 SP4 openssl-1_1 1.1.1l-150400.7.93.1 SUSE-SU-2026:1562-1
SLE HPC 15 SP4 openssl-3 3.0.8-150400.4.84.1 SUSE-SU-2026:1429-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed openssl-3 3.5.3-4.1 openSUSE-SU-2026:10533-1
openSUSE Leap 16.0 openssl-3 3.5.0-160000.7.1 openSUSE-SU-2026:20525-1
ReleasePackageFixed inAdvisory
Alpine v3.24 openssl 3.5.6-r0 —
Alpine v3.23 openssl 3.5.6-r0 —
Alpine v3.22 openssl 3.5.6-r0 —
Alpine v3.21 openssl 3.3.7-r0 —
Alpine v3.20 openssl 3.3.7-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 openssl +5 1:3.5.5-1.amzn2023.0.4 ALAS2023-2026-1586
Amazon Linux 2 edk2-ovmf +3 20240813-307.amzn2 ALAS2-2026-3275
Amazon Linux 2 openssl +4 1:1.0.2k-24.amzn2.0.20 ALAS2-2026-3274
Amazon Linux 2 openssl11 +3 1:1.1.1zg-1.amzn2.0.1 ALAS2-2026-3249

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 edk2 20240524git3e722403cd16-16 —
Azure Linux 3 openssl 3.3.5-5 —
Azure Linux 3 openssl-fips-provider No fix yet —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 edk2-ovmf +3 20251114-5.0.1.el10_2.2 ELSA-2026-39297
Oracle Linux 10 openssl +3 1:3.5.5-5.0.1.el10_2 ELSA-2026-22314
Oracle Linux 9 compat-openssl11 1:1.1.1k-5.el9_8.3 ELSA-2026-22313
Oracle Linux 9 openssl +3 1:3.5.5-4.0.1.el9_8 ELSA-2026-50345, ELSA-2026-22312
Oracle Linux 8 compat-openssl10 1:1.0.2o-4.el8_10.2 ELSA-2026-22315
Oracle Linux 8 openssl +3 1:1.1.1k-17.el8_6 ELSA-2026-38503

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling openssl +1 3.6.2-r0 —

Advisories 50

References