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openSUSE Python-Cryptography Important Network Attack Issues 2026-3040-1

opensuse
Calendar Grey July 15, 2026
Dist Opensuse Esm H88
This security update for python-cryptography fixes eight important issues, enhancing openSUSE's resilience against data risks.
An update that solves eight vulnerabilities can now be installed.

Description

This update for python-cryptography fixes the following issues:

* CVE-2026-41676: openssl: `Deriver:derive` and `PkeyCtxRef:derive` can

overflow short buffers on OpenSSL 1.1.1 (bsc#1270208).

* CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when

returning an oversized length (bsc#1270620).

* CVE-2026-41678: openssl: out-of-bounds write due to incorrect bounds

assertion in `aes::unwrap_key()` (bsc#1270706).

* CVE-2026-41681: openssl: `MdCtxRef::digest_final()` writes past caller

buffer with no length check (bsc#1270772).

* CVE-2026-41898: openssl: unchecked callback-returned length in PSK and

cookie generate trampolines can leak adjacent memory to the network

(bsc#1270801).

* CVE-2026-42327: openssl: undefined behavior in `X509Ref::ocsp_responders`

for certificates with non-UTF-8 OCSP URLs (bsc#1270515).

* CVE-2026-44662: openssl: heap buffer overflow when encrypting with AES key-

wrap-with-padding due to incorrectly...

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Topics%20covered

Topics Covered

security advisory buffer overflow important network attack OpenSUSE python-cryptography

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* Public Cloud Module 15-SP4

zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-3040=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-3040=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-3040=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3040=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-3040=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3040=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-3040=1

*...

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Package List

* SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64

x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64

x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* Public Cloud Module 15-SP4 (aarch64 ppc64le s390x x86_64)

* python311-cryptography-41.0.3-150400.16.25.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4...

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References

* bsc#1270208

* bsc#1270515

* bsc#1270620

* bsc#1270706

* bsc#1270772

* bsc#1270801

* bsc#1270936

* bsc#1270994

## References:

* https://www.suse.com/security/cve/CVE-2026-41676.html

* https://www.suse.com/security/cve/CVE-2026-41677.html

* https://www.suse.com/security/cve/CVE-2026-41678.html

* https://www.suse.com/security/cve/CVE-2026-41681.html

* https://www.suse.com/security/cve/CVE-2026-41898.html

* https://www.suse.com/security/cve/CVE-2026-42327.html

* https://www.suse.com/security/cve/CVE-2026-44662.html

* https://www.suse.com/security/cve/CVE-2026-45784.html

* https://bugzilla.suse.com/show_bug.cgi?id=1270208

* https://bugzilla.suse.com/show_bug.cgi?id=1270515

* https://bugzilla.suse.com/show_bug.cgi?id=1270620

* https://bugzilla.suse.com/show_bug.cgi?id=1270706

* https://bugzilla.suse.com/show_bug.cgi?id=1270772

* https://bugzilla.suse.com/show_bug.cgi?id=1270801

* https://bugzilla.suse.com/show_bug.cgi?id=1270936

* https://bugzilla.suse.com/show_bug.cgi?id=1270994

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3040-1
Release Date: 2026-07-15T11:48:45Z
Affected Products: * openSUSE Leap 15.4 * Public Cloud Module 15-SP4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Manager Proxy 4.3 * SUSE Manager Retail Branch Server 4.3 * SUSE Manager Server 4.3

Topics%20covered

Topics Covered

security advisory buffer overflow important network attack OpenSUSE python-cryptography

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