NULL pointer dereference in Debian Linux - CVE-2019-9208
Published: February 28, 2019 / Updated: August 4, 2020
Vulnerability identifier: #VU33468
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2019-9208
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in Wireshark 2.4.0 to 2.4.12 and 2.6.0 to 2.6.6, the TCAP dissector could crash. This was addressed in epan/dissectors/asn1/tcap/tcap.cnf by avoiding NULL pointer dereferences. A remote attacker can perform a denial of service (DoS) attack.
Affected software
Debian Linux
Opensuse
wireshark (Alpine package)
Opensuse
wireshark (Alpine package)
How to mitigate CVE-2019-9208
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
wireshark (Alpine package) - update to 2.6.7-r0
External References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00007.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/107203
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15464
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=3d1b8004ed3a07422ca5d4e4ee8097150b934fd2
- https://seclists.org/bugtraq/2019/Mar/35
- https://usn.ubuntu.com/3986-1/
- https://www.debian.org/security/2019/dsa-4416
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.wireshark.org/security/wnpa-sec-2019-07.html