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).

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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). (CVE-2018-14938)

An issue has been found in tcpflow, a TCP flow recorder.

Due to an overflow vulnerability in function handle_80211, an out-of-bounds read with access to sensitive memory or a denial of service might happen.

For Debian 9 stretch, this problem has been fixed in version 1.4.4+repack1-3+deb8u1.

We recommend that you upgrade your tcpflow packages.

For the detailed security status of tcpflow please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/tcpflow

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3955-1 advisory.

    It was discovered that tcpflow incorrectly handled certain malformed network

    packets. A remote attacker could send these packets to a target system, causing tcpflow to crash or     possibly disclose sensitive information.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Update to latest upstream release tcpflow 1.5.0.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
424560	Alpine: multiple tcpflow packages: security update to 1.5.0-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
424560	Alpine: multiple tcpflow packages: security update to 1.5.0-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
143323	Debian DLA-2468-1 : tcpflow security update	Nessus	Debian Local Security Checks	critical
124322	Ubuntu 16.04 LTS / 18.04 LTS : tcpflow vulnerabilities (USN-3955-1)	Nessus	Ubuntu Local Security Checks	critical
120449	Fedora 28 : tcpflow (2018-5ad77cc979)	Nessus	Fedora Local Security Checks	critical
117299	Fedora 27 : tcpflow (2018-4f0b7d1251)	Nessus	Fedora Local Security Checks	critical

Detections

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CVE-2018-14938

critical

Tenable Plugins

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critical

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critical