openEuler 20.03 LTS update for wireshark-2.6.2-7

1) Stack-based buffer overflow

EUVDB-ID: #VU26746

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-11647

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing data in BACapp dissector. A remote attacker can send specially crafted data via the network, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS

wireshark-help: before 2.6.2-7

wireshark-devel: before 2.6.2-7

wireshark-debugsource: before 2.6.2-7

wireshark-debuginfo: before 2.6.2-7

wireshark: before 2.6.2-7

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1024

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. However, proof of concept for this vulnerability is available.