Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2022-1664 |
CWE-ID | CWE-22 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system libdpkg-perl (Ubuntu package) Operating systems & Components / Operating system package or component dpkg (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU63711
Risk: Medium
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-1664
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 in Dpkg::Source::Archive in dpkg when extracting untrusted source packages in the v2 and v3
source package formats that include a debian.tar. A remote attacker can create a specially crafted package with symbolic links that point to files outside the source tree root directory and overwrite arbitrary files on the system.
Update the affected package dpkg to the latest version.
Vulnerable software versionsUbuntu: 16.04
libdpkg-perl (Ubuntu package): before 1.18.4u buntu1.7+esm1
dpkg (Ubuntu package): before 1.18.4u buntu1.7+esm1
External linkshttp://ubuntu.com/security/notices/USN-5446-2
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.