Permissions, Privileges, and Access Controls in bubblewrap (Alpine package)
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-5291 |
| CWE-ID | CWE-264 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
bubblewrap (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU26553
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-5291
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists within the "bwrap --userns2" option if the affected software is installed in setuid mode and the kernel supports unprivileged user namespaces. A remote authenticated attacker can gain root privileges on the target system.
MitigationInstall update from vendor's website.
Vulnerable software versionsbubblewrap (Alpine package): 0.4.0-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=24c223cde62dd5274bc3b720a91cc2b2cbdd6681
http://git.alpinelinux.org/aports/commit/?id=d6cf491eb50cd9e7348c93aa8f0f66168103b363
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
