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CVE-2023-5981

Status Candidate

Overview

A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.

Related Files

Red Hat Security Advisory 2024-0533-03
Posted Jan 30, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0533-03 - An update for gnutls is now available for Red Hat Enterprise Linux 9.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-5981
SHA-256 | 52cb971d0799ce2130f24a5eeda58e884332039591558e2aed5290e7a3f2b2b4
Red Hat Security Advisory 2024-0451-03
Posted Jan 26, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0451-03 - An update for gnutls is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-5981
SHA-256 | 52e676e3e8a01ef2d811b076ad76a086174001e289f6b5100084fd05a1b2e146
Red Hat Security Advisory 2024-0399-03
Posted Jan 25, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0399-03 - An update for gnutls is now available for Red Hat Enterprise Linux 8.8 Extended Update Support.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-5981
SHA-256 | 2ca226115d85f8e05de36317bda4cf1f7fda4ec5fab9044eda45aef99ee6178f
Red Hat Security Advisory 2024-0319-03
Posted Jan 23, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0319-03 - An update for gnutls is now available for Red Hat Enterprise Linux 8.6 Extended Update Support.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-5981
SHA-256 | 4461d7dbc5c09043d817b84f4b089dfeb7c82b869cf9bf4e8aa5fb2ed3281b28
Red Hat Security Advisory 2024-0155-03
Posted Jan 11, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0155-03 - An update for gnutls is now available for Red Hat Enterprise Linux 8.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-5981
SHA-256 | 3c5db14117395a66499452e430163a96a7f0989a9fa032ad27767918ad60dc2f
Ubuntu Security Notice USN-6499-2
Posted Jan 8, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6499-2 - USN-6499-1 fixed vulnerabilities in GnuTLS. This update provides the corresponding update for Ubuntu 18.04 LTS. 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 recover sensitive information.

tags | advisory, remote, vulnerability
systems | linux, ubuntu
advisories | CVE-2023-5981
SHA-256 | 7300e394902c463b25545b66cbc364e56e5b3d370737b461f07e6d027b0e72e7
Ubuntu Security Notice USN-6499-1
Posted Nov 22, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6499-1 - 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 recover sensitive information.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2023-5981
SHA-256 | c4318ffc70d40344c6cc24f5df5b0bd189dedc07477a6bdf29ded4cc378b8f3b
GNU Transport Layer Security Library 3.8.2
Posted Nov 16, 2023
Authored by Simon Josefsson, Nikos Mavrogiannopoulos | Site gnu.org

GnuTLS is a secure communications library implementing the SSL and TLS protocols and technologies around them. It provides a simple C language application programming interface (API) to access the secure communications protocols, as well as APIs to parse and write X.509, PKCS #12, OpenPGP, and other required structures. It is intended to be portable and efficient with a focus on security and interoperability.

Changes: This is a bug fix and enhancement release on the 3.8.x branch. Included is a fix for a timing side-channel inside RSA-PSK key exchange.
tags | protocol, library
advisories | CVE-2023-5981
SHA-256 | e765e5016ffa9b9dd243e363a0460d577074444ee2491267db2e96c9c2adef77
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