USN-8123-1 mbedtls vulnerabilities

It was discovered that Mbed TLS incorrectly handled memory allocation failures. A remote attacker could possibly use this issue to crash the program. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. CVE-2021-44732 Jonathan Winzig discovered that Mbed TLS incorrectly handled crafted...

SUSE-SU-2026:20769-1 Security update for ovmf

This update for ovmf fixes the following issue: - CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error reporting bsc1252441...

Security update for micropython (low)

openSUSE Security Update: Security update for micropython Announcement ID: openSUSE-SU-2026:0050-1 Rating: low References: 1257803 Cross-References: CVE-2025-59438 CVE-2026-1998 CVSS scores: CVE-2025-59438 SUSE: 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Affected Products...

curl: SSL options ISSUERCERT, EC_CURVES and CRLFILE silently ignored by non-OpenSSL backends

Summary: The SSL options ISSUERCERT, ECCURVES and CRLFILE are silently ignored for e.g. the mbedTLS backend, which allows MITM attacks for the ISSUERCERT and CRLFILE bug, and can reduce the security and compliance by ignoring the specified curve for the ECCURVES bug. Affected version Tested with...

JLSEC-2025-202 A Lucky 13 timing side channel in `mbedtls_ssl_decrypt_buf` in `library/ssl_msg.c` in Trusted...

A Lucky 13 timing side channel in mbedtlsssldecryptbuf in library/sslmsg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length...

JLSEC-2025-233 Padding oracle through timing of cipher error reporting

Vulnerability In symmetric encryption modes that involve padding, if an attacker can submit ciphertexts for decryption and learn whether the padding is valid, this provides partial information about the plaintext. If the attacker can also submit input that the victim encrypts together with a...

JLSEC-2025-221 Use of a Broken or Risky Cryptographic Algorithm in the function `mbedtls_mpi_exp_mod()` in lignum.c...

Use of a Broken or Risky Cryptographic Algorithm in the function mbedtlsmpiexpmod in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information typically an untrusted operating system attacking a...

TencentOS Server 4: mbedtls (TSSA-2025:0337)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0337 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

Siemens SIMATIC S7-1500 Improper Validation of Certificate with Host Mismatch (CVE-2024-2466)

libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate...

CVE-2025-64429

DuckDB 1.4.0–pre-1.4.2 encryption implementation is vulnerable due to multiple cryptographic weaknesses: insecure RNG (pcg32 fallback), possible memory wipe omission (memset) leaving secrets, and header manipulation could downgrade from GCM to CTR, bypassing integrity. There may also be unhandled...

OPENSUSE-SU-2025:20035-1 Security update for micropython

This update for micropython fixes the following issues: Changes in micropython: - Build with mbedtls-3.6.5 instead of bundled 3.6.2 to fix CVE-2025-59438 Version 1.26.0: Added machine.I2CTarget for creating I2C target devices on multiple ports. New MCU support: STM32N6xx 800 MHz, ML accel &...

Fedora: Security Advisory (FEDORA-2025-fe7ea8bbdd)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora 42 : dolphin-emu (2025-cbd9bd51dd)

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-cbd9bd51dd advisory. Add CVE and bug fixes to bundled mbedtls in dolphin-emu Tenable has extracted the preceding description block directly from the Fedora security...

Fedora 43 : dolphin-emu (2025-ea90f8d03c)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-ea90f8d03c advisory. Add CVE and bug fixes to bundled mbedtls in dolphin-emu Tenable has extracted the preceding description block directly from the Fedora security advisory. Not...

Fedora 41 : mbedtls (2025-fe7ea8bbdd)

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-fe7ea8bbdd advisory. Backport CVE fixes from 3.6 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that Nessus has not tested...

Fedora: Security Advisory (FEDORA-2025-dce2ac8ea0)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Linux Distros Unpatched Vulnerability : CVE-2025-54764

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Mbed TLS before 3.6.5 allows a local timing attack against certain RSA operations, and direct calls to mbedtlsmpimodinv or mbedtlsmpigcd. CVE-2025-54764 Note th...

[SECURITY] Fedora 43 Update: mbedtls-3.6.5-1.fc43

Mbed TLS is a light-weight open source cryptographic and SSL/TLS library written in C. Mbed TLS makes it easy for developers to include cryptographic and SSL/TLS capabilities in their embedded applications with as little hassle as possible...

Fedora 43 : mbedtls (2025-dce2ac8ea0)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-dce2ac8ea0 advisory. - Update to 3.6.5 Release notes: https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.6.5 Tenable has extracted the preceding description bloc...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via discrepancies in processing invalid padding errors in legacy API mbedtlsciphercrypt and mbedtlscipherfinish functions and in the PSA Crypto API psacipherdecrypt and psacipherfinish functions when handling any other...