Security bypass in firefox (Alpine package)
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2015-4495 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software Subscribe |
firefox (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
1) Security bypass
EUVDB-ID: #VU1831
Risk: Critical
CVSSv3.1: 8.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID: CVE-2015-4495
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerabiity allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to improper input validation. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, bypass same-origin policy and inject arbitrary JavaScript into the built-in PDF Viewer to gain access to arbitrary files on the system.
Successful exploitation of this vulnerability may result in access to local files and privilege escalation, leading to system compromise.
Note: the vulnerability was being actively exploited.
Install update from vendor's website.
Vulnerable software versionsfirefox (Alpine package): 38.0-r0 - 38.0.1-r1
External linkshttp://git.alpinelinux.org/aports/commit/?id=caf70fd3ead9d6a43c78690c03d6f4868bc022de
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.
