TI-2017-03425 Aliases CVE-2017-5397 GHSA-5h8g-78mr-f4g5

The cache directory on the local file system is set to be world writable.

MEDIUM 48CWE-829Published 2018-06-11 · Updated 2024-08-05

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-829.

Summary

The cache directory on the local file system is set to be world writable. Firefox defaults to extracting libraries from this cache. This allows for the possibility of an installed malicious application or tools with write access to the file system to replace files used by Firefox with their own versions. This vulnerability affects Firefox < 51.0.3.

Why it matters now

EPSS 0.03623 89th percentileScored 2026-11-07

Fix Fixed Firefox (Mozilla): 51.0.3

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	Firefox	before 51.0.3	51.0.3	Patch available	CNA

Firefox VendorMozilla Affected before 51.0.3 Fixed in 51.0.3 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox::::::::	before 51.0.3	Vulnerable	Mozilla

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 51.0.3 Vulnerable ·Mozilla

Remediation

Fix · CNA Firefox (Mozilla) Fixed in 51.0.3

Timeline

2026-10-02 Threatist record created from CVE-2017-5397
2026-10-03 Alias added: GHSA-5h8g-78mr-f4g5

References

Patch 1

https://bugzilla.mozilla.org/show_bug.cgi?id=1337304

Advisory 1

https://www.mozilla.org/security/advisories/mfsa2017-04/

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