Ubuntu update for gcab

1) Stack-based buffer overflow

EUVDB-ID: #VU10252

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-5345

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The weakness exists due to stack-based buffer overflow when handling malicious input. A remote attacker can trick the victim into opening a specially crafted .cab file, trigger memory corruptions and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected packages

Ubuntu 17.10:

libgcab-1.0-0 0.7-4ubuntu0.1

gcab 0.7-4ubuntu0.1

Ubuntu 16.04 LTS:

libgcab-1.0-0 0.7-1ubuntu0.1

gcab 0.7-1ubuntu0.1

Vulnerable software versions

Ubuntu: 16.04 - 17.10

CPE2.3

• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:17.10:*:*:*:*:*:*:*

External links

https://www.ubuntu.com/usn/usn-3546-1/

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.