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CVE-2018-19623

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Date: November 28, 2018

In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.

Language: C

Severity Score

Related Resources (12)

https://www.wireshark.org/security/wnpa-sec-2018-53.html
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-19623
https://www.oracle.com/security-alerts/cpuapr2020.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15132
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9c8645ec7b28e4d7193962ecd2a418613bf6a84f
https://security-tracker.debian.org/tracker/CVE-2018-19623
https://www.debian.org/security/2018/dsa-4359
https://nvd.nist.gov/vuln/detail/CVE-2018-19623
http://www.securityfocus.com/bid/106051
https://www.mend.io/vulnerability-database/CVE-2018-19623

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

Out-of-bounds Write

CWE-787

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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