Resource management error in firefox (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-26967 |
| CWE-ID | CWE-399 |
| Exploitation vector | Network |
| Public exploit | N/A |
| 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 low risk vulnerability.
1) Resource management error
EUVDB-ID: #VU48471
Risk: Low
CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-26967
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to introduce an unexpected behavior.
The vulnerability exists due to improper management of internal resources within Mutation Observers. When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into interacting with elements other than those that it injected into the page. This would lead to internal errors and unexpected behavior in the Screenshots code.
MitigationInstall update from vendor's website.
Vulnerable software versionsfirefox (Alpine package): 76.0.1-r1 - 77.0.1-r4
External linkshttp://git.alpinelinux.org/aports/commit/?id=13a8f0d1284680f721e935cc6d3cb2649cf25093
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.
