SB2019040927 - Input validation error in Wireshark
Published: April 9, 2019 Updated: August 4, 2020
Security Bulletin ID
SB2019040927
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2019-10895)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.4.0 to 2.4.13, 2.6.0 to 2.6.7, and 3.0.0, the NetScaler file parser could crash. This was addressed in wiretap/netscaler.c by improving data validation.
Remediation
Install update from vendor's website.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/107834
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15497
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=2fbbde780e5d5d82e31dca656217daf278cf62bb
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=38680c4c69f9f4e0f39e29b66fe2b02d88eb629d
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=cab0cff6abdd7a5b5b0bfa4ee204eea951e129e9
- https://lists.debian.org/debian-lts-announce/2019/05/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4LYIOOQIMFQ3PA7AFBK4DNXHISTEYUC5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PU3QA2DUO3XS24QE24CQRP4A4XQQY76R/
- https://usn.ubuntu.com/3986-1/
- https://www.wireshark.org/security/wnpa-sec-2019-09.html