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CVE-2018-14938

An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an...

9.1 CriticalFix available

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).

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
High

Exploit likelihood

2.75%Up 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.1

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).

Record
CVE-2018-14938
CVSS 3.0
9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.0
6.4 MediumAV:N/AC:L/Au:N/C:P/I:N/A:P
Weakness
CWE-125, CWE-190
Updated
2026-11-02
CVE List No score

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).

Record
CVE-2018-14938
Updated
2026-11-02
EUVDEUVD-2018-6820 No score

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).

Record
EUVD-2018-6820
Updated
2026-11-03
GitHub AdvisoriesGHSA-prgj-cjmj-v8ff 9.1

An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an...

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).

Record
GHSA-prgj-cjmj-v8ff
CVSS 3.0
9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSVALPINE-CVE-2018-14938 9.1

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).

Record
ALPINE-CVE-2018-14938
CVSS 3.0
9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSV 9.1

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).

Record
CVE-2018-14938
CVSS 3.0
9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVDEBIAN-CVE-2018-14938 9.1

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).

Record
DEBIAN-CVE-2018-14938
CVSS 3.0
9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-14938 9.1

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).

Record
UBUNTU-CVE-2018-14938
CVSS 3.0
9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVMGASA-2018-0401 No score

Updated tcpflow packages fix security vulnerability

pdated tcpflow package fixes security vulnerability:

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).

Record
MGASA-2018-0401
Updated
2026-11-02
OSVUSN-3955-1 No score

tcpflow vulnerabilities

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.

Record
USN-3955-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
tcpflow
Alpine:v3.11
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.12
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.13
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.14
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.15
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.16
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.17
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.18
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.19
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.20
 before 1.5.0-r0
1.5.0-r0
Show 12 moreShow less
Affected packages
PackageAffectedFixed
tcpflow
Alpine:v3.21
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.22
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.23
 before 1.5.0-r0
1.5.0-r0
tcpflow
Alpine:v3.24
 before 1.5.0-r0
1.5.0-r0
tcpflow
Debian:12
 before 1.5.0+repack1-1
1.5.0+repack1-1
tcpflow
Debian:13
 before 1.5.0+repack1-1
1.5.0+repack1-1
tcpflow
Debian:14
 before 1.5.0+repack1-1
1.5.0+repack1-1
tcpflow
Debian:9
 before 1.4.4+repack1-3+deb8u1
1.4.4+repack1-3+deb8u1
tcpflow
Mageia:6
 before 1.5.0-1.mga6
1.5.0-1.mga6
tcpflow
Ubuntu:Pro:14.04:LTS
 before 1.4.4+repack1-2ubuntu0.1~esm1, plus listed versions
1.3.0+dfsg-21.4.3+repack1-11.4.4+repack1-11.4.4+repack1-2
1.4.4+repack1-2ubuntu0.1~esm1
tcpflow
Ubuntu:16.04:LTS
 before 1.4.5+repack1-1ubuntu0.1, plus listed versions
1.4.4+repack1-31.4.5+repack1-1
1.4.5+repack1-1ubuntu0.1
tcpflow
Ubuntu:18.04:LTS
 before 1.4.5+repack1-4ubuntu0.18.04.1, plus listed versions
1.4.5+repack1-41.4.5+repack1-4build11.4.5+repack1-4build2
1.4.5+repack1-4ubuntu0.18.04.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-14938 is a critical vulnerability (CVSS 9.1) in Digitalcorpora Tcpflow, published August 4, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.75%, the 86th percentile. Fixed in tcpflow 1.5.0-r0.

References

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