CVE-2026-32280 Unexpected work during chain building in crypto/x509

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls...

CVE-2026-32280

CVE-2026-32280 affects Go’s crypto/x509 (and Go’s crypto/tls by propagation) where, during chain building, VerifyOptions.Intermediates can trigger unbounded work when many intermediates are supplied, enabling denial of service. The OpenSUSE advisories and the NVD entry confirm the issue as a chai...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write via the hexadecimal conversion process of excessively large OCTET STRING values in X.509 certificate extensions such as Subject Key Identifier or Authority Key Identifier. An attacker can cause a crash, execute...

Improper Handling of Case Sensitivity

Overview std/crypto/x509 is a Go standard library package std/crypto/x509 Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity. Go Vulnerability Report: When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly...

Allocation of Resources Without Limits or Throttling

Overview std/crypto/x509 is a Go standard library package std/crypto/x509 Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling. Go Vulnerability Report: During chain building, the amount of work that is done is not correctly limited when a large...

Allocation of Resources Without Limits or Throttling

Overview std/crypto/x509 is a Go standard library package std/crypto/x509 Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling. Go Vulnerability Report: Validating certificate chains which use policies is unexpectedly inefficient when certificat...

CVE-2026-28388

Issue summary: When a delta CRL that contains a Delta CRL Indicator extension is processed a NULL pointer dereference might happen if the required CRL Number extension is missing. Impact summary: A NULL pointer dereference can trigger a crash which leads to a Denial of Service for an application...

CVE-2026-31789

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

CVE-2026-31789 Heap Buffer Overflow in Hexadecimal Conversion

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

CVE-2026-31789

OpenSSL vulnerability CVE-2026-31789: on 32-bit platforms, converting a large OCTET STRING (e.g., SKID/AKID in X.509 certificates) to hex can overflow the buffer, causing a heap overflow that may crash or enable attacker-controlled behavior. Affected are OpenSSL versions with the vulnerable conve...

CVE-2026-31789 Heap Buffer Overflow in Hexadecimal Conversion

Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker c...

kernel security update

5.14.0-611.47.1 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

Linux Distros Unpatched Vulnerability : CVE-2026-31789

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A...

PT-2026-31037

Name of the Vulnerable Software and Affected Versions OpenSSL versions 3.0 through 3.6 Description A NULL pointer dereference can occur during the processing of a delta CRL containing a Delta CRL Indicator extension if the required CRL Number extension is missing. This can lead to a denial of...

PT-2026-31061

Name of the Vulnerable Software and Affected Versions versions prior to 2.3 Description An issue exists in the way certificate chains are processed, specifically during chain building. The amount of work performed isn't properly limited when a large number of intermediate certificates are provide...

kernel security update

6.12.0-124.49.1 - Add new Oracle Linux Driver Signing key 1 certificate Orabug: 37985782 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list...

OpenSSL 3.4.0 < 3.4.5 Multiple Vulnerabilities

The version of OpenSSL installed on the remote host is prior to 3.4.5. It is, therefore, affected by multiple vulnerabilities as referenced in the 3.4.5 advisory. - Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit...

PT-2026-31040

Name of the Vulnerable Software and Affected Versions OpenSSL affected versions not specified Description Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32-bit platforms. This occurs when a crafted X.509 certificate contains an...

SUSE CVE-2026-25833

Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509inetptonipv6 function...

CVE-2026-34610

A flaw was found in the leancrypto cryptographic library. A remote attacker can exploit an integer overflow vulnerability in the lcx509extractnamesegment function when processing the Common Name CN field of an X.509 certificate. By crafting a specially designed certificate, an attacker can cause...