#VU33037 Out-of-bounds read in Firefox ESR - CVE-2019-11719 

 

#VU33037 Out-of-bounds read in Firefox ESR - CVE-2019-11719

Published: July 23, 2019 / Updated: August 3, 2020


Vulnerability identifier: #VU33037
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-11719
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Firefox ESR
Software vendor:
Mozilla

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.


Remediation

Install update from vendor's website.

External links