openEuler update for wireshark

1) Infinite loop

EUVDB-ID: #VU47429

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-26575

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the Facebook Zero Protocol (aka FBZERO) dissector in epan/dissectors/packet-fbzero.c. A remote attacker can pass specially crafted traffic to the application, consume all available system resources and cause denial of service conditions.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

wireshark-help: before 2.6.2-17

wireshark-devel: before 2.6.2-17

wireshark-debuginfo: before 2.6.2-17

wireshark-debugsource: before 2.6.2-17

wireshark: before 2.6.2-17

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
• cpe:2.3:a:openeuler:wireshark-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:wireshark-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:wireshark-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:wireshark-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:wireshark:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1076

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.