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CVE-2018-16869

Status Candidate

Overview

A Bleichenbacher type side-channel based padding oracle attack was found in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run a process on the same physical core as the victim process, could use this flaw extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.

Related Files

Ubuntu Security Notice USN-4990-1
Posted Jun 17, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4990-1 - It was discovered that Nettle incorrectly handled RSA decryption. A remote attacker could possibly use this issue to cause Nettle to crash, resulting in a denial of service. It was discovered that Nettle incorrectly handled certain padding oracles. A remote attacker could possibly use this issue to perform a variant of the Bleichenbacher attack. This issue only affected Ubuntu 18.04 LTS. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2018-16869, CVE-2021-3580
SHA-256 | 18ac1040641e10f745441e19c4e76450403a73af58de924392fb2255e3dfadc1
Slackware Security Advisory - nettle Updates
Posted Dec 6, 2018
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New nettle packages are available for Slackware 14.2 and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2018-16869
SHA-256 | 22109be4a838f0a3c5a5f25be00ebee9f6c0c633b38811b63bd53b88ac3ca4e8
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