CVE-2018-14938 Integer overflow in n/a

What is CVE-2018-14938?

CVE-2018-14938 is a critical vulnerability in Canonical Ubuntu Linux, published on 5 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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).

Weakness: CWE-190, CWE-125

Which versions are affected by CVE-2018-14938?

It affects 2 products.

Products include Canonical Ubuntu Linux, Digitalcorpora Tcpflow.

How do I fix CVE-2018-14938?

Apply the vendor's patch.

Is CVE-2018-14938 being exploited?

There is no known exploitation of CVE-2018-14938 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2018-14938, DEBIAN-CVE-2018-14938, DLA-2468-1, GHSA-prgj-cjmj-v8ff, MGASA-2018-0401, UBUNTU-CVE-2018-14938.