CVE-2018-18500 (NVD)

2019-02-05

A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.

Products Ubuntu_linux, Debian_linux, Firefox, Firefox_esr, Thunderbird, Enterprise_linux_desktop, Enterprise_linux_server, Enterprise_linux_server_aus, Enterprise_linux_server_eus, Enterprise_linux_server_tus, Enterprise_linux_workstation
Type Use After Free (CWE-416)
First patch - None (likely due to unavailable code)
Links • http://www.securityfocus.com/bid/106781
• https://www.mozilla.org/security/advisories/mfsa2019-03/
• https://access.redhat.com/errata/RHSA-2019:0270
• https://www.debian.org/security/2019/dsa-4392
• https://www.mozilla.org/security/advisories/mfsa2019-01/