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CVE-2018-13112

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of...

7.5 HighFix available

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

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
None
Integrity
None
Availability
High

Exploit likelihood

2.27%Up 1.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Record
CVE-2018-13112
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Record
CVE-2018-13112
Updated
2026-11-02
EUVDEUVD-2018-5061 No score

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Record
EUVD-2018-5061
Updated
2026-11-03
GitHub AdvisoriesGHSA-3g5m-g7r7-6pwf 7.5

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of...

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Record
GHSA-3g5m-g7r7-6pwf
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSV 7.5

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Record
CVE-2018-13112
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-13112 7.5

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Record
DEBIAN-CVE-2018-13112
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-13112 7.5

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Record
UBUNTU-CVE-2018-13112
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUSN-5205-1 No score

tcpreplay vulnerabilities

It was discovered that Tcpreplay incorrectly handled certain specially crafted packet capture input when processed by tcpprep. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 ESM. (CVE-2018-13112)

It was discovered that Tcpreplay incorrectly handled certain specially crafted packet capture input. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2018-17580, CVE-2018-17582)

It was discovered that Tcpreplay incorrectly handled certain specially crafted packet capture input. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2018-17974, CVE-2018-18407)

It was discovered that a use-after-free existed in Tcpreplay in the tcpbridge binary. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2018-18408)

It was discovered that Tcpreplay incorrectly handled certain specially crafted packet capture input. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2018-20552, CVE-2018-20553)

It was discovered that a heap-based buffer over-read that existed in Tcpreplay caused an application crash when tcprewrite or tcpreplay-edit received specially crafted packet capture input. An attacker could possibly use this to cause a denial of service or to expose sensitive information. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-12740)

It was discovered that Tcpreplay incorrectly handled certain specially crafted packet capture input when processed by tcpprep. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-24265, CVE-2020-24266)

It was discovered that Tcpreplay incorrectly handled certain specially crafted packet capture input when processed by tcprewrite. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 ESM. (CVE-2022-27416)

It was discovered that Tcpreplay did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted packet capture file, a remote attacker could possibly use this issue to cause Tcpreplay crash, resulting in a denial of service, or possibly read sensitive data. This issue only affected Ubuntu 18.04 ESM, Ubuntu 20.04 ESM and Ubuntu 22.04 ESM. (CVE-2022-28487)

Record
USN-5205-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
tcpreplay
Debian:12
before 4.3.1-1
4.3.1-1
tcpreplay
Debian:13
before 4.3.1-1
4.3.1-1
tcpreplay
Debian:14
before 4.3.1-1
4.3.1-1
tcpreplay
Ubuntu:Pro:18.04:LTS
before 4.2.6-1ubuntu0.1~esm1, plus listed versions
4.2.6-1
4.2.6-1ubuntu0.1~esm1
tcpreplay
Ubuntu:Pro:16.04:LTS
From an advisory covering 13 CVEs
before 3.4.4-2+deb8u1ubuntu0.1~esm2, plus listed versions
3.4.4-23.4.4-2+deb8u1build0.16.04.13.4.4-2+deb8u1ubuntu0.1~esm1
3.4.4-2+deb8u1ubuntu0.1~esm2
tcpreplay
Ubuntu:Pro:18.04:LTS
From an advisory covering 13 CVEs
before 4.2.6-1ubuntu0.1~esm4, plus listed versions
4.2.6-14.2.6-1ubuntu0.1~esm14.2.6-1ubuntu0.1~esm24.2.6-1ubuntu0.1~esm3
4.2.6-1ubuntu0.1~esm4
tcpreplay
Ubuntu:Pro:20.04:LTS
From an advisory covering 13 CVEs
before 4.3.2-1ubuntu0.1~esm2, plus listed versions
4.3.2-1build14.3.2-1ubuntu0.1~esm1
4.3.2-1ubuntu0.1~esm2
tcpreplay
Ubuntu:Pro:22.04:LTS
From an advisory covering 13 CVEs
before 4.3.4-1ubuntu0.1~esm1, plus listed versions
4.3.3-24.3.4-1
4.3.4-1ubuntu0.1~esm1

History

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

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

In short

CVE-2018-13112 is a high vulnerability (CVSS 7.5) in Broadcom Tcpreplay, published July 3, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.27%, the 83rd percentile. Fixed in tcpreplay 4.3.1-1.

References

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