CVE-2019-17023

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox < 72.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-287

Affected software

No affected versions have been published.

Timeline

Published: Jan 8, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2019

CVE-2019-170248.8Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. Some of these bugs showed evidence of memory corr CVE-2019-170258.8Mozilla developers reported memory safety bugs present in Firefox 71. Some of these bugs showed evidence of memory corruption and we presume CVE-2019-170268.8Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted at CVE-2019-17038.6A vulnerability in the internal packet-processing functionality of Cisco Firepower Threat Defense (FTD) Software for the Cisco Firepower 210 CVE-2019-17047.5Multiple vulnerabilities in the Server Message Block (SMB) Protocol preprocessor detection engine for Cisco Firepower Threat Defense (FTD) S CVE-2019-170409.8contrib/pmdb2diag/pmdb2diag.c in Rsyslog v8.1908.0 allows out-of-bounds access because the level length is mishandled.CVE-2019-170419.8An issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overflow in the parser for AIX log CVE-2019-170429.8An issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the parser for Cisco log messages. CVE-2019-170437.8An issue was discovered in BMC Patrol Agent 9.0.10i. Weak execution permissions on the best1collect.exe SUID binary could allow an attacker CVE-2019-170447.8An issue was discovered in BMC Patrol Agent 9.0.10i. Weak execution permissions on the PatrolAgent SUID binary could allow an attacker with CVE-2019-170454.8Ilch 2.1.22 allows stored XSS via the title, text, or email id to the Jobs Tab.CVE-2019-170467.2Ilch 2.1.22 allows remote code execution because php is listed under "Allowed files" on the index.php/admin/media/settings/index page.