Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | N/A |
CWE-ID | CWE-264 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
FreeBSD Operating systems & Components / Operating system |
Vendor | FreeBSD Foundation |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU822
Risk: High
CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
Description
The vulnerability allows a local user to obtain elevated privileges on the target system.
The vulnerability exists due to improper processing of symbolic links (symlinks) or hard links. By
overwriting files outside of the libarchive extraction directory or modifying the directory permissions a mailicious user can obtain root privileges on the system.
Successful exploitation of this vulnerability will allow the local attacker to obtain elevated privileges on vulnerable system.
MitigationUpdate patched versions:
- 10.1 (https://security.FreeBSD.org/patches/SA-16:31/libarchive-10.1.patch);
- 10.2 (https://security.FreeBSD.org/patches/SA-16:31/libarchive-10.2.patch);
- 10.3 (https://security.FreeBSD.org/patches/SA-16:31/libarchive-10.3.patch).
FreeBSD: 5.3 - 11.0
External linkshttp://www.freebsd.org/security/advisories/FreeBSD-SA-16:31.libarchive.asc
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.