gnutls: timing side-channel in the RSA-PSK authentication

A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS1 v1.5 padding...

PT-2024-11019 · Unknown · Contiki-Ng

Name of the Vulnerable Software and Affected Versions: Contiki-NG tinyDTLS versions through 2018-08-30 Description: An issue was discovered where one incorrect handshake could complete with different epoch numbers in the packets Client Hello, Client key exchange, and Change cipher spec, which may...

DEBIAN-CVE-2024-0553

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange,...

AZL-33341 CVE-2024-0553 affecting package gnutls for versions less than 3.7.11-1

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange,...

Design/Logic Flaw

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange,...

UBUNTU-CVE-2024-0553

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange,...

CVE-2024-0553

CVE-2024-0553 affects GnuTLS and describes a timing side‑channel in RSA-PSK ClientKeyExchange that could leak data. Multiple connected advisories confirm affected package versions and provide fixes: Debian/Red Hat‑based mariners list upgrades to mitigate (examples include gnutls >= 3.7.11-1 or...

GnuTLS Security Vulnerabilities

GnuTLS is a free secure communications library for implementing the SSL, TLS and DTLS protocols. A security vulnerability exists in GnuTLS, which stems from a difference in response time for ciphertexts that are formatted incorrectly versus ciphertexts that are correctly padded, which could allow...

PT-2024-1281

Name of the Vulnerable Software and Affected Versions GnuTLS affected versions not specified Description The issue is related to a difference in response time when handling RSA ciphertext in ClientKeyExchange messages with correct and incorrect PKCS1 padding. This could allow a remote attacker to...

gnutls: timing side-channel in the RSA-PSK authentication

A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS1 v1.5 padding...

MGASA-2024-0004 Updated dropbear package fixes a security vulnerability

Parts of the SSH specification are vulnerable to a novel prefix truncation attack a.k.a. Terrapin attack, which allows a man-in-the-middle attacker to strip an arbitrary number of messages right after the initial key exchange, breaking SSH extension negotiation RFC8308 in the process and thus...

USN-6499-2 gnutls28 vulnerability

USN-6499-1 fixed vulnerabilities in GnuTLS. This update provides the corresponding update for Ubuntu 18.04 LTS. Original advisory details: It was discovered that GnuTLS had a timing side-channel when handling certain RSA-PSK key exchanges. A remote attacker could possibly use this issue to recove...

Medium: gnutls

Issue Overview: A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS1 v1.5 padding. Only TLS ciphertext processing is affected. CVE-2023-5981 Affected Packages: gnutls Issue Correction:...

CVE-2023-48795 vulnerability on SSH

panel:title=Strict key exchange support|borderStyle=solid|borderColor=3c78b5|titleBGColor=3c78b5|bgColor=e7f4fa The server now supports strict key exchange in 8.9.10+ LTS, 8.13.6+, 8.14.5+, 8.15.4+, 8.16.3+, 8.17.1+ and 8.18.0+. If old SSH clients that don't support strict key exchange are being...

OPENSUSE-SU-2024:0005-1 Security update for putty

This update for putty fixes the following issues: putty was updated to to release 0.80: Fix CVE-2023-48795 boo1218128 - Update to release 0.79 Terminal mouse tracking: support for mouse movements which are not drags, and support for horizontal scroll events e.g. generated by trackpads. Fixed: PuT...

SUSE-SU-2023:4952-1 Security update for gnutls

This update for gnutls fixes the following issues: - CVE-2023-0361: Fixed a Bleichenbacher oracle in the TLS RSA key exchange bsc1208143. - CVE-2023-5981: Fixed timing side-channel inside RSA-PSK key exchange bsc1217277...

PT-2023-9145

Name of the Vulnerable Software and Affected Versions m2crypto affected versions not specified Description A flaw was found in m2crypto, which may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges. This could lead to the exposure of confidential or...

GHSA-HFMC-7525-MJ55 AsyncSSH vulnerable to Prefix Truncation Attack (a.k.a. Terrapin Attack) against ChaCha20-Poly1305 and Encrypt-then-MAC

Summary AsyncSSH v2.14.1 and earlier is vulnerable to a novel prefix truncation attack a.k.a. Terrapin attack, which allows a man-in-the-middle attacker to strip an arbitrary number of messages right after the initial key exchange, breaking SSH extension negotiation RFC8308 in the process and thu...

AsyncSSH vulnerable to Prefix Truncation Attack (a.k.a. Terrapin Attack) against ChaCha20-Poly1305 and Encrypt-then-MAC

Summary AsyncSSH v2.14.1 and earlier is vulnerable to a novel prefix truncation attack a.k.a. Terrapin attack, which allows a man-in-the-middle attacker to strip an arbitrary number of messages right after the initial key exchange, breaking SSH extension negotiation RFC8308 in the process and thu...

PT-2023-31620 · Unknown · Yii2-Authclient

Name of the Vulnerable Software and Affected Versions: yii2-authclient versions prior to 2.2.15 Description: The Oauth2 PKCE implementation in yii2-authclient is vulnerable in two ways. First, the authCodeVerifier should be removed after usage, similar to authState. Second, there is a risk for a...