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,...

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,...

SUSE SLED15 / SLES15 Security Update : python-pyasn1 (SUSE-SU-2026:3238-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3238-1 advisory. - CVE-2026-59884: BER/CER/DER decoder denial of service via unbounded long-form tag IDs bsc1271464. -...

SUSE-SU-2026:3238-1 Security update for python-pyasn1

This update for python-pyasn1 fixes the following issues: - CVE-2026-59884: BER/CER/DER decoder denial of service via unbounded long-form tag IDs bsc1271464. - CVE-2026-59885: quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service bsc1271465. -...

GHSA-HM4W-WWCW-MR6R pyasn1: Uncontrolled resource consumption when converting decoded REAL values

Impact The univ.Real type converted its mantissa, base, exponent value to a Python float using exact big-integer exponentiation. A BER/CER/DER-encoded REAL value only a few bytes long can carry a very large exponent, causing this computation to attempt to materialize an astronomically large...

OPENSUSE-SU-2026:21392-1 Security update for python-pyasn1

This update for python-pyasn1 fixes the following issues: - CVE-2026-59884: BER/CER/DER decoder denial of service via unbounded long-form tag IDs bsc1271464. - CVE-2026-59885: quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service bsc1271465. -...

SUSE-SU-2026:22765-1 Security update for python-pyasn1

This update for python-pyasn1 fixes the following issues: - CVE-2026-59884: BER/CER/DER decoder denial of service via unbounded long-form tag IDs bsc1271464. - CVE-2026-59885: quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service bsc1271465. -...

CVE-2026-59886 pyasn1: Uncontrolled resource consumption when converting decoded REAL values

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base, and exponent value to a Python float using exact big-integer exponentiation. A BER, CER, or DER encoded REAL value only a few bytes long can carry a very large exponent, causing float...