CVE catalog

CVE-2018-14938

tcpflow: CVE-2018-14938

Severity: Medium · CVSS 5.5CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Published: Aug 2, 2018, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 2.75% · Oct 25, 2026

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).

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	tcpflow	sid	`1.6.1-3`	fixed
Debian	tcpflow	forky	`1.6.1-3`	fixed
Debian	tcpflow	trixie	`1.6.1-3`	fixed
Debian	tcpflow	bookworm	`1.6.1-2`	fixed
Alpine	tcpflow	3.11	`1.5.0-r0`	fixed
Alpine	tcpflow	3.12	`1.5.0-r0`	fixed
Alpine	tcpflow	3.13	`1.5.0-r0`	fixed
Alpine	tcpflow	3.14	`1.5.0-r0`	fixed
Alpine	tcpflow	3.15	`1.5.0-r0`	fixed
Alpine	tcpflow	3.16	`1.5.0-r0`	fixed
Alpine	tcpflow	3.17	`1.5.0-r0`	fixed
Alpine	tcpflow	3.18	`1.5.0-r0`	fixed
Alpine	tcpflow	3.19	`1.5.0-r0`	fixed
Alpine	tcpflow	3.20	`1.5.0-r0`	fixed
Alpine	tcpflow	3.21	`1.5.0-r0`	fixed
Alpine	tcpflow	3.22	`1.5.0-r0`	fixed
Alpine	tcpflow	3.23	`1.5.0-r0`	fixed
Alpine	tcpflow	3.24	`1.5.0-r0`	fixed
Ubuntu	tcpflow	16.04	`1.4.4+repack1-3`	vulnerable
Ubuntu	tcpflow	16.04	`1.4.5+repack1-1`	vulnerable
Ubuntu	tcpflow	16.04	`1.4.5+repack1-1ubuntu0.1`	fixed
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4`	vulnerable
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4build1`	vulnerable
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4build2`	vulnerable
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4ubuntu0.18.04.1`	fixed
Ubuntu	tcpflow	pro	`1.3.0+dfsg-2`	vulnerable
Ubuntu	tcpflow	pro	`1.4.3+repack1-1`	vulnerable
Ubuntu	tcpflow	pro	`1.4.4+repack1-1`	vulnerable
Ubuntu	tcpflow	pro	`1.4.4+repack1-2`	vulnerable
Ubuntu	tcpflow	pro	`1.4.4+repack1-2ubuntu0.1~esm1`	fixed
Ubuntu	tcpflow	16.04	`1.4.4+repack1-3`	vulnerable
Ubuntu	tcpflow	16.04	`1.4.5+repack1-1`	vulnerable
Ubuntu	tcpflow	16.04	`1.4.5+repack1-1ubuntu0.1`	fixed
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4`	vulnerable
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4build1`	vulnerable
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4build2`	vulnerable
Ubuntu	tcpflow	18.04	`1.4.5+repack1-4ubuntu0.18.04.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	tcpflow	source	sid	`1.5.0+repack1-1`	not yet assigned	Not reported	[905483]
Debian	tcpflow	source	forky	`1.5.0+repack1-1`	not yet assigned	Not reported	[905483]
Debian	tcpflow	source	trixie	`1.5.0+repack1-1`	not yet assigned	Not reported	[905483]
Debian	tcpflow	source	bookworm	`1.5.0+repack1-1`	not yet assigned	Not reported	[905483]
Alpine	tcpflow	apk	3.11	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.12	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.13	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.14	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.15	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.16	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.17	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.18	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.19	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.20	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.21	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.22	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.23	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Alpine	tcpflow	apk	3.24	`1.5.0-r0`	Not reported	ALPINE-CVE-2018-14938	Not reported
Ubuntu	tcpflow	deb	16.04	`1.4.5+repack1-1ubuntu0.1`	Not reported	USN-3955-1	Not reported
Ubuntu	tcpflow	deb	18.04	`1.4.5+repack1-4ubuntu0.18.04.1`	Not reported	USN-3955-1	Not reported
Ubuntu	tcpflow	deb	pro	`1.4.4+repack1-2ubuntu0.1~esm1`	Not reported	UBUNTU-CVE-2018-14938	Not reported
Ubuntu	tcpflow	deb	16.04	`1.4.5+repack1-1ubuntu0.1`	Not reported	UBUNTU-CVE-2018-14938	Not reported
Ubuntu	tcpflow	deb	18.04	`1.4.5+repack1-4ubuntu0.18.04.1`	Not reported	UBUNTU-CVE-2018-14938	Not reported

[Debian bug #905483]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[tcpflow]Fixed
Source package: [tcpflow]
Details (2)
- 1.6.1-2+b1 · amd64 · bookworm
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · bookworm; dsa · tcpflow · debian · 12
- 1.6.1-2+b1 · arm64 · bookworm
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · bookworm; dsa · tcpflow · debian · 12
[tcpflow-nox]Fixed
Source package: [tcpflow]
Details (2)
- 1.6.1-2+b1 · amd64 · bookworm
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · bookworm; dsa · tcpflow · debian · 12
- 1.6.1-2+b1 · arm64 · bookworm
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · bookworm; dsa · tcpflow · debian · 12

[Debian 13 (Trixie)]

[tcpflow]Fixed
Source package: [tcpflow]
Details (2)
- 1.6.1-3+b1 · amd64 · trixie
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · 13
- 1.6.1-3+b2 · arm64 · trixie
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · 13
[tcpflow-nox]Fixed
Source package: [tcpflow]
Details (2)
- 1.6.1-3+b1 · amd64 · trixie
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · 13
- 1.6.1-3+b2 · arm64 · trixie
  Fixed · Fixed: 1.5.0+repack1-1
  dsa · tcpflow · debian · 13

Observed: Oct 23, 2026, 5:34:54 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]