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CVE-2018-14938

Publication date 4 August 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.1 · Critical

Score breakdown

An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an integer overflow in the function handle_prism during caplen processing. If the caplen is less than 144, one can cause an integer overflow in the function handle_80211, which will result in an out-of-bounds read and may allow access to sensitive memory (or a denial of service).

From the Ubuntu Security Team

It was discovered that tcpflow mishandled certain crafted input, resulting in an integer overflow. An attacker could use this vulnerability to leak sensitive information or cause a denial of service (crash).

Status

Package Ubuntu Release Status
tcpflow 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic
Fixed 1.4.5+repack1-4ubuntu0.18.10.1
18.04 LTS bionic
Fixed 1.4.5+repack1-4ubuntu0.18.04.1
16.04 LTS xenial
Fixed 1.4.5+repack1-1ubuntu0.1
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 9.1 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H