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openSUSE Leap 16.0 OpenSSL-3 Significant Heap Overflow Out-of-Bounds

opensuse
Calendar Grey June 30, 2026
Dist Opensuse Esm H88
This critical update resolves 15 vulnerabilities in openssl-3 for openSUSE, including heap and out-of-bounds issues.
An update that solves 15 vulnerabilities and has 15 bug fixes can now be installed.

Description

This update for openssl-3 fixes the following issues

- CVE-2026-2673: TLS 1.3 servers may choose unexpected key agreement group (bsc#1259652).

- CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion (bsc#1266340).

- CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based Decryption (bsc#1266341).

- CVE-2026-34180: Heap Buffer Over-read in ASN.1 Content Parsing (bsc#1266342).

- CVE-2026-34182: CMS AuthEnvelopedData Processing May Accept Forged Messages (bsc#1266344).

- CVE-2026-34183: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (bsc#1266345).

- CVE-2026-42764: NULL pointer dereference in QUIC server initial packet handling (bsc#1266347).

- CVE-2026-42766: Possible NULL Dereference in Password-Based CMS Decryption (bsc#1266349).

- CVE-2026-42767: NULL Pointer Dereference in CRMF EncryptedValue Decryption (bsc#1266350).

- CVE-2026-42768: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt() (bsc#1266351).

-...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory OpenSSL important heap overflow out of bounds access OpenSUSE

Patch

Package List

- openSUSE Leap 16.0:

libopenssl-3-devel-3.5.0-160000.8.1

libopenssl-3-fips-provider-3.5.0-160000.8.1

libopenssl-3-fips-provider-x86-64-v3-3.5.0-160000.8.1

libopenssl3-3.5.0-160000.8.1

libopenssl3-x86-64-v3-3.5.0-160000.8.1

openssl-3-3.5.0-160000.8.1

openssl-3-doc-3.5.0-160000.8.1

References

* bsc#1259652

* bsc#1266340

* bsc#1266341

* bsc#1266342

* bsc#1266344

* bsc#1266345

* bsc#1266347

* bsc#1266349

* bsc#1266350

* bsc#1266351

* bsc#1266352

* bsc#1266353

* bsc#1266355

* bsc#1266356

* bsc#1266357

References:

* https://www.suse.com/security/cve/CVE-2026-2673.html

* https://www.suse.com/security/cve/CVE-2026-34180.html

* https://www.suse.com/security/cve/CVE-2026-34182.html

* https://www.suse.com/security/cve/CVE-2026-34183.html

* https://www.suse.com/security/cve/CVE-2026-42764.html

* https://www.suse.com/security/cve/CVE-2026-42766.html

* https://www.suse.com/security/cve/CVE-2026-42767.html

* https://www.suse.com/security/cve/CVE-2026-42768.html

* https://www.suse.com/security/cve/CVE-2026-42769.html

* https://www.suse.com/security/cve/CVE-2026-42770.html

* https://www.suse.com/security/cve/CVE-2026-45445.html

* https://www.suse.com/security/cve/CVE-2026-45446.html

* https://www.suse.com/security/cve/CVE-2026-45447.html

* https://www.suse.com/security/cve/CVE-2026-7383.html

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:21005-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory OpenSSL important heap overflow out of bounds access OpenSUSE

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