SB2019022820 - NULL pointer dereference in Debian Linux
Published: February 28, 2019 Updated: August 4, 2020
Security Bulletin ID
SB2019022820
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) NULL pointer dereference (CVE-ID: CVE-2019-9214)
CWE-ID: CWE-476 - NULL Pointer Dereference
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 2.4.12 and 2.6.0 to 2.6.6, the RPCAP dissector could crash. This was addressed in epan/dissectors/packet-rpcap.c by avoiding an attempted dereference of a NULL conversation.
Remediation
Install update from vendor's website.
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=15536
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=c557bb0910be271e49563756411a690a1bc53ce5
- https://seclists.org/bugtraq/2019/Mar/35
- https://usn.ubuntu.com/3986-1/
- https://www.debian.org/security/2019/dsa-4416
- https://www.wireshark.org/security/wnpa-sec-2019-08.html