SB2018101206 - Multiple vulnerabilities in Wireshark

Description

This security bulletin contains information about 4 vulnerabilities.

1) Improper input validation (CVE-ID: CVE-2018-18227)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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:Clear

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can inject a malformed packet into a network, to be processed by the affected application, or trick the victim into opening a malicious packet trace file and cause the MS-WSP dissector component to crash.

2) Memory leak (CVE-ID: CVE-2018-18226)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to memory leak in the Steam IHS Discovery dissector when handling malicious input. A remote attacker can inject a malformed packet into a network, to be processed by the affected application, or trick the victim into opening a malicious packet trace file and gain access to arbitrary data.

3) Improper input validation (CVE-ID: CVE-2018-18225)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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:Clear

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can inject a malformed packet into a network, to be processed by the affected application, or trick the victim into opening a malicious packet trace file and cause the CoAP dissector component to crash.

4) Improper input validation (CVE-ID: CVE-2018-12086)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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:Clear

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can inject a malformed packet into a network, to be processed by the affected application, or trick the victim into opening a malicious packet trace file and cause the OpcUa dissector component to crash.

Remediation

Install update from vendor's website.

References

• https://www.wireshark.org/security/wnpa-sec-2018-47.html
• https://www.wireshark.org/security/wnpa-sec-2018-48.html
• https://www.wireshark.org/security/wnpa-sec-2018-49.html
• https://www.wireshark.org/security/wnpa-sec-2018-50.html