pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values

A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption,...

Important: Red Hat Security Advisory: fence-agents security update

An update for fence-agents is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

Important: Red Hat Security Advisory: resource-agents security update

An update for resource-agents is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabilit...

Security update for bouncycastle

This update for bouncycastle fixes the following issues: CVE-2026-8763: Name Constraints bypass via trailing dot in rfc822Name and URI bsc1272700. CVE-2026-12185: BKS/UBER keystore allocates from untrusted lengths before integrity check bsc1272701. CVE-2026-12802: CMS AuthEnvelopedData fails to...

Security update for wireshark

This update for wireshark fixes the following issues: Update to version 4.6.7: CVE-2026-5299: ICMPv6 dissector crash bsc1263757. CVE-2026-5401: AFP dissector crash bsc1263756. CVE-2026-5402: TLS dissector crash and possible code execution bsc1263755. CVE-2026-5403: SBC audio codec crash bsc126376...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the toByteArray method of DefiniteLengthInputStream, which allocates new byteintremaining up front from the declared ASN.1 definite-length value before reading any content. An attacker can...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the toByteArray method of DefiniteLengthInputStream, which allocates new byteintremaining up front from the declared ASN.1 definite-length value before reading any content. An attacker can...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the toByteArray method of DefiniteLengthInputStream, which allocates new byteintremaining up front from the declared ASN.1 definite-length value before reading any content. An attacker can...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the toByteArray method of DefiniteLengthInputStream, which allocates new byteintremaining up front from the declared ASN.1 definite-length value before reading any content. An attacker can...

CVE-2026-58216

An out-of-bounds read flaw was found in Samba's Kerberos Key Distribution Center's KDC password change kpasswd service. When processing malformed ASN.1-encoded Kerberos password change request, Samba server miscalculates the structure size and attempts to read up to six bytes beyond the end of th...

CVE-2026-59886

A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption,...

Incorrect Conversion between Numeric Types

Overview Affected versions of this package are vulnerable to Incorrect Conversion between Numeric Types in the prettyPrint process. An attacker can cause excessive CPU and memory consumption by providing specially crafted ASN.1 data with large exponents in encoded REAL values. Remediation Upgrade...

CVE-2026-59885 pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode call and c...

UBUNTU-CVE-2026-50722

Libreswan, via the function RSAauthenticatehashsignaturepkcs115rsa, did not correctly verify the DER encoding of the ASN.1 digest when the IKEv2 AUTH payload was encoded using RSASSA-PKCS1-v15 RFC 8017. A remote attacker can use a variation on the Bleichenbacher attack to forge the AUTH payload...

CVE-2026-57914

A flaw was found in Apache Kerby. A remote attacker could send a deeply nested Abstract Syntax Notation One ASN.1 structure to an Apache Kerby client or service, triggering a stack overflow exception. This could lead to a denial of service DoS condition, making the service unavailable to legitima...

SUSE SLES15 Security Update : openssl-1_1 (SUSE-SU-2026:2404-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2404-1 advisory. - CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify bsc1266357. - CVE-2026-42766: Possible NULL Dereference in...

openssl: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information disclosure.

A flaw was found in OpenSSL. An integer truncation vulnerability in the ASN.1 decoder can occur when processing a crafted DER-encoded ASN.1 structure with a primitive element exceeding 2 gigabytes. A remote attacker could exploit this to cause a heap buffer over-read. This may lead to an...

Important: Red Hat Security Advisory: openssl security update

An update for openssl is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

EUVD-2026-35476

Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap buffer over-read on 64-bit Unix and Unix-like platforms. Impact summary: The heap buffer over-read may crash the application Denial of Service or to...

CVE-2026-34180 Heap Buffer Over-read in ASN.1 Content Parsing

Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap buffer over-read on 64-bit Unix and Unix-like platforms. Impact summary: The heap buffer over-read may crash the application Denial of Service or to...