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QSN-8847-1: OpenSSL vulnerabilities

September 29, 2026

Summary

Several security issues were fixed in OpenSSL.

Details

It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. (CVE-2026-35189)

It was discovered that OpenSSL incorrectly handled QUIC unvalidated amplification credit accounting. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-35191)

It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. (CVE-2026-54872)

It was discovered that OpenSSL incorrectly implemented SM2 scalar multiplication on ARM64 and RISC-V architectures. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-54875)

It was discovered that OpenSSL incorrectly handled SSL context switching during a TLS handshake. An attacker could possibly use this issue to cause an out-of-bounds read, resulting in a denial of service or obtaining sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-72897)

It was discovered that OpenSSL incorrectly enforced QUIC connection- level flow control for streams. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-75804)

It was discovered that OpenSSL incorrectly handled a NULL pointer in CMP client revocation response processing. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-75805)

It was discovered that OpenSSL incorrectly handled undersized DTLS 1.2 AEAD records before authentication. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-75806)

It was discovered that OpenSSL incorrectly implemented SM2 signature generation. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. (CVE-2026-77696)

It was discovered that OpenSSL incorrectly handled DTLS retransmission of handshake messages. An attacker could possibly use this issue to cause incorrect handshake behavior or a denial of service. (CVE-2026-84782)

It was discovered that OpenSSL incorrectly handled QUIC RETIRE_CONNECTION_ID frames. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-84784)

Affected QuantaStor releases

ReleasePlatformPackageExposureShipped versionFixed versionStatus
6.9.1.001Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.303.0.2-0ubuntu1.30Fixed in this release
6.9.1.001Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.303.0.2-0ubuntu1.30Fixed in this release
6.9.0.464Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.303.0.2-0ubuntu1.30Fixed in this release
6.9.0.464Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.303.0.2-0ubuntu1.30Fixed in this release
6.8.6.015Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.293.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.6.015Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.293.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.5.018Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.263.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.5.018Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.263.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.4.038Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.263.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.4.038Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.263.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.3.018Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.263.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.3.018Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.263.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.2.002Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.253.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.2.002Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.253.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.1.007Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.253.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.1.007Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.253.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.0.205Ubuntu 22.04 LTSlibssl3Externally-facing3.0.2-0ubuntu1.253.0.2-0ubuntu1.30Fixed by QuantaStor security update
6.8.0.205Ubuntu 22.04 LTSopensslInternally-facing3.0.2-0ubuntu1.253.0.2-0ubuntu1.30Fixed by QuantaStor security update

Internally-facing: only accessible when logged into the QuantaStor console/ssh as the qadmin administrative sudo user; generally lower priority. Externally-facing: part of a service the storage platform presents on the network (or the kernel), so potentially reachable over the network.

CVEs

CVE-2026-75806, CVE-2026-84782, CVE-2026-54872, CVE-2026-84784, CVE-2026-77696, CVE-2026-75804, CVE-2026-54875, CVE-2026-75805, CVE-2026-72897, CVE-2026-35191, CVE-2026-35189

References

https://ubuntu.com/security/notices/USN-8847-1

https://nvd.nist.gov/vuln/detail/CVE-2026-75806

https://nvd.nist.gov/vuln/detail/CVE-2026-84782

https://nvd.nist.gov/vuln/detail/CVE-2026-54872

https://nvd.nist.gov/vuln/detail/CVE-2026-84784

https://nvd.nist.gov/vuln/detail/CVE-2026-77696

https://nvd.nist.gov/vuln/detail/CVE-2026-75804

https://nvd.nist.gov/vuln/detail/CVE-2026-54875

https://nvd.nist.gov/vuln/detail/CVE-2026-75805

https://nvd.nist.gov/vuln/detail/CVE-2026-72897

https://nvd.nist.gov/vuln/detail/CVE-2026-35191

https://nvd.nist.gov/vuln/detail/CVE-2026-35189

Update

Fixes marked Fixed by QuantaStor security update are applied by upgrading QuantaStor with security patches included (Upgrade Manager). Fixed package versions:

PlatformPackageVersion
Ubuntu 22.04 LTSopenssl3.0.2-0ubuntu1.30
Ubuntu 24.04 LTSopenssl3.0.13-0ubuntu3.16
resoluteopenssl3.5.5-1ubuntu3.6