SB2020021184 - Code Injection in thunderbird (Alpine package)

Description

This security bulletin contains information about 1 vulnerability.

1) Code Injection (CVE-ID: CVE-2020-6798)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to execute arbitrary JavaScript code on the target system.

The vulnerability exists due to improper input validation when parsing template tag. A remote attacker can confuse the JavaScript parser into executing an arbitrary JavaScript send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://git.alpinelinux.org/aports/commit/?id=d1dc06fce1ad81bf7cc833673aca0ea7e21db6fb
• https://git.alpinelinux.org/aports/commit/?id=b3a10d424ad10e10ad565e2270d7aad7019da5cf
• https://git.alpinelinux.org/aports/commit/?id=b34b713509404edde6e3bfb92ab656bad2345496