Moderate: Red Hat Security Advisory: gnutls security, bug fix, and enhancement update

An update for gnutls is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

SUSE SLES12 Security Update : gnutls (SUSE-SU-2018:2825-2)

This update for gnutls fixes the following issues : This update for gnutls fixes the following issues : Security issues fixed : Improved mitigations against Lucky 13 class of attacks 'Just in Time' PRIME + PROBE cache-based side channel attack can lead to plaintext recovery CVE-2018-10846,...

SUSE-SU-2018:2930-1 Security update for gnutls

This update for gnutls fixes the following security issues: - Improved mitigations against Lucky 13 class of attacks - CVE-2018-10846: 'Just in Time' PRIME + PROBE cache-based side channel attack can lead to plaintext recovery bsc1105460 - CVE-2018-10845: HMAC-SHA-384 vulnerable to Lucky thirteen...

SUSE SLES12 Security Update : gnutls (SUSE-SU-2018:2825-1)

This update for gnutls fixes the following issues : This update for gnutls fixes the following issues : Security issues fixed : Improved mitigations against Lucky 13 class of attacks 'Just in Time' PRIME + PROBE cache-based side channel attack can lead to plaintext recovery CVE-2018-10846,...

[SECURITY] Fedora 29 Update: python-pycryptodomex-3.6.6-1.fc29

PyCryptodome is a self-contained Python package of low-level cryptographic primitives. It's a fork of PyCrypto. It brings several enhancements with respect to the last official version of PyCrypto 2.6.1, for instance: Authenticated encryption modes GCM, CCM, EAX, SIV, OCB Accelerated AES on Intel...

EulerOS Virtualization 2.5.0 : kernel (EulerOS-SA-2018-1232)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - The Salsa20 encryption algorithm in the Linux kernel before 4.14.8 does not correctly handle zero-length inputs, allowing a local...

[SECURITY] Fedora 28 Update: python-pycryptodomex-3.6.6-1.fc28

PyCryptodome is a self-contained Python package of low-level cryptographic primitives. It's a fork of PyCrypto. It brings several enhancements with respect to the last official version of PyCrypto 2.6.1, for instance: Authenticated encryption modes GCM, CCM, EAX, SIV, OCB Accelerated AES on Intel...

Threat Analysis: Recent Attack Technique Leveraging cmd.exe and PowerShell Demonstrates How Attackers Are Using Trusted Microsoft Applications for Malicious Behavior

An attack leveraging cmd.exe and PowerShell was recently investigated by Cb ThreatSight analysts. Our initial investigation discovered that a batch file was executed on the targeted system. This batch file then invoked PowerShell with a base64 encoded command. Decoding the command revealed a seri...

Timing Attack

libgnutls.c is vulnerable to timing attacks. The uses the wrong constant during HMAC-SHA-384 hashing, allowing a malicious user to conduct gain access to sensitive information by analyzing the timing data by sending crafted packets. This is similar to the "Lucky Thirteen" attack...

Code injection

It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets...

Code injection

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets...

CVE-2018-10845

It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets...

CVE-2018-10845

It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets...

CVE-2018-10844

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets...

CVE-2018-10844

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets...

DEBIAN-CVE-2018-10844

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets...

DEBIAN-CVE-2018-10845

It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets...

CVE-2018-10845

CVE-2018-10845 affects GnuTLS HMAC-SHA-384 and enables a Lucky Thirteen–style timing side-channel leading to potential plaintext recovery. The connected IBM advisories confirm remote exploitation via crafted packets to obtain information, with MEDIUM base scores and impact on confidentiality. Rem...

CVE-2018-10845

It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets...

CVE-2018-10844

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets...