Multiple vulnerabilities in Pale Moon
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-31739 CVE-2022-31741 |
| CWE-ID | CWE-22 CWE-457 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Pale Moon Client/Desktop applications / Web browsers |
| Vendor | Pale Moon |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Path traversal
EUVDB-ID: #VU63875
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-31739
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when saving downloaded files on Windows. A remote attacker can use the "%" character in filename to store data outside the intended directory using Windows environment variables, such as %HOMEPATH% or %APPDATA%.
The vulnerability affects Windows installations only.
Install update from vendor's website.
Vulnerable software versionsPale Moon: 20.0 - 31.0.0
External linkshttp://www.palemoon.org/releasenotes.shtml#v31.1.0
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Use of Uninitialized Variable
EUVDB-ID: #VU63877
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-31741
CWE-ID:
CWE-457 - Use of Uninitialized Variable
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted webpage, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsPale Moon: 20.0 - 31.0.0
External linkshttp://www.palemoon.org/releasenotes.shtml#v31.1.0
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
