TI-2020-05507 Aliases CVE-2020-6797 GHSA-x22j-8886-rjmh

Improper input validation in Mozilla Thunderbird

LOW 23CWE-20Published 2020-03-02 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating systems are unaffected. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.

Why it matters now

EPSS 0.01478 74th percentileScored 2026-11-07

Fix Fixed Thunderbird (Mozilla): 68.5Firefox (Mozilla): 73, ESR68.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Mozilla	Thunderbird	before 68.5	68.5	Patch available	CNA
Mozilla	Firefox	before 73; before ESR68.5	73, ESR68.5	Patch available	CNA

Thunderbird VendorMozilla Affected before 68.5 Fixed in 68.5 Patch available CNA
Firefox VendorMozilla Affected before 73; before ESR68.5 Fixed in 73, ESR68.5 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox::::::::	before 73.0	Vulnerable	Mozilla
cpe:2.3:a:mozilla:firefox_esr::::::::	before 68.5.0	Vulnerable	Mozilla
cpe:2.3:a:mozilla:thunderbird::::::::	before 68.5.0	Vulnerable	Mozilla
cpe:2.3:o:apple:macos:-:::::::*	not specified by NVD	Running on	Apple

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 73.0 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 68.5.0 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 68.5.0 Vulnerable ·Mozilla
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple

Remediation

Fix · CNA Thunderbird (Mozilla) Fixed in 68.5
Fix · CNA Firefox (Mozilla) Fixed in 73, ESR68.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2020-03-02
Mozilla Thunderbird 68.5
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2020-05503 Use of uninitialized resource in Mozilla ThunderbirdPriority LOW 32
- TI-2020-05505 NULL pointer dereference in Mozilla ThunderbirdPriority LOW 31
- TI-2020-05504 Cleartext storage of sensitive information in Mozilla ThunderbirdPriority LOW 31
Show all 5 records →
Release · 2020-03-02
Mozilla Firefox 73, ESR68.5
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2020-05509 Command line arguments could have been injected during Firefox invocation as a shell…Priority MEDIUM 41
Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 4 products

Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8

Timeline

2026-10-02 Threatist record created from CVE-2020-6797
2026-10-03 Alias added: GHSA-x22j-8886-rjmh

References

Advisory 4

Other 1

https://bugzilla.mozilla.org/show_bug.cgi?id=1596668

TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences