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CVE-2018-10846

Status Candidate

Overview

A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets.

Related Files

Ubuntu Security Notice USN-3999-1
Posted May 30, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3999-1 - Eyal Ronen, Kenneth G. Paterson, and Adi Shamir discovered that GnuTLS was vulnerable to a timing side-channel attack known as the "Lucky Thirteen" issue. A remote attacker could possibly use this issue to perform plaintext-recovery attacks via analysis of timing data. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Tavis Ormandy discovered that GnuTLS incorrectly handled memory when verifying certain X.509 certificates. A remote attacker could use this issue to cause GnuTLS to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-10844, CVE-2018-10845, CVE-2018-10846, CVE-2019-3829, CVE-2019-3836
MD5 | 4cbf065b1af56a0a40bec4bc087f50f1
Red Hat Security Advisory 2018-3505-01
Posted Nov 6, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3505-01 - Red Hat Ansible Tower 3.3.1 is now available and contains a large amount of security fixes.

tags | advisory
systems | linux, redhat
advisories | CVE-2015-9262, CVE-2016-9396, CVE-2017-1000050, CVE-2017-18267, CVE-2017-3735, CVE-2018-0495, CVE-2018-0732, CVE-2018-0737, CVE-2018-0739, CVE-2018-1000805, CVE-2018-1060, CVE-2018-1061, CVE-2018-10733, CVE-2018-10767, CVE-2018-10768, CVE-2018-10844, CVE-2018-10845, CVE-2018-10846, CVE-2018-12384, CVE-2018-12910, CVE-2018-13988, CVE-2018-14679, CVE-2018-14680, CVE-2018-14681, CVE-2018-14682, CVE-2018-16837, CVE-2018-17456
MD5 | b7af30db27ef5f7b266ad41827d5a000
Red Hat Security Advisory 2018-3050-01
Posted Oct 30, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3050-01 - The gnutls packages provide the GNU Transport Layer Security library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS. Issues addressed include Lucky Thirteen and other attack mitigations.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2018-10844, CVE-2018-10845, CVE-2018-10846
MD5 | ab7c6b4a8a0c21485c0e7921408ece0e
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