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CVE-2020-24265

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow...

7.5 HighFix available

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause 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
None
Integrity
None
Availability
High

Exploit likelihood

2.23%Up 0.9 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
CVE-2020-24265
CVSS 3.1
7.5 HighCVSS:3.1/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-787
Updated
2026-11-02
CVE List No score

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
CVE-2020-24265
Updated
2026-11-02
EUVDEUVD-2020-17000 No score

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
EUVD-2020-17000
Updated
2026-11-03
GitHub AdvisoriesGHSA-j9f7-fx8r-4pr6 7.5

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow...

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
GHSA-j9f7-fx8r-4pr6
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-787
Updated
2026-11-02
OSVALPINE-CVE-2020-24265 7.5

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
ALPINE-CVE-2020-24265
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
OSV 7.5

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
CVE-2020-24265
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 5 moreShow less
OSVDEBIAN-CVE-2020-24265 7.5

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
DEBIAN-CVE-2020-24265
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-24265 7.5

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service.

Record
UBUNTU-CVE-2020-24265
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2020-0437 No score

Updated tcpreplay package fixes security vulnerabilities

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in MemcmpInterceptorCommon() that can make tcpprep crash and cause a denial of service (CVE-2020-24265).

An issue was discovered in tcpreplay tcpprep v4.3.3. There is a heap buffer overflow vulnerability in get_l2len() that can make tcpprep crash and cause a denial of service (CVE-2020-24266).

Record
MGASA-2020-0437
Updated
2026-11-02
OSVopenSUSE-SU-2024:11426-1 No score

tcpreplay-4.3.4-1.3 on GA media

These are all security issues fixed in the tcpreplay-4.3.4-1.3 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11426-1
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
Alpine:v3.20
before 4.3.4-r0
4.3.4-r0
tcpreplay
Alpine:v3.21
before 4.3.4-r0
4.3.4-r0
tcpreplay
Alpine:v3.22
before 4.3.4-r0
4.3.4-r0
tcpreplay
Alpine:v3.23
before 4.3.4-r0
4.3.4-r0
tcpreplay
Alpine:v3.24
before 4.3.4-r0
4.3.4-r0
tcpreplay
Debian:12
before 4.3.4-1
4.3.4-1
tcpreplay
Debian:13
before 4.3.4-1
4.3.4-1
tcpreplay
Debian:14
before 4.3.4-1
4.3.4-1
tcpreplay
Mageia:7
From an advisory covering 2 CVEs
before 4.3.3-1.1.mga7
4.3.3-1.1.mga7
tcpreplay
Ubuntu:Pro:18.04:LTS
before 4.2.6-1ubuntu0.1~esm3, plus listed versions
4.2.6-14.2.6-1ubuntu0.1~esm14.2.6-1ubuntu0.1~esm2
4.2.6-1ubuntu0.1~esm3
Show 6 moreShow less
Affected packages
PackageAffectedFixed
tcpreplay
Ubuntu:Pro:20.04:LTS
before 4.3.2-1ubuntu0.1~esm1, plus listed versions
4.3.2-1build1
4.3.2-1ubuntu0.1~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
tcpreplay
openSUSE:Tumbleweed
From an advisory covering 11 CVEs
before 4.3.4-1.3
4.3.4-1.3

History

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

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

In short

CVE-2020-24265 is a high vulnerability (CVSS 7.5) in Broadcom Tcpreplay, published October 19, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.23%, the 82nd percentile. Fixed in tcpreplay 4.3.4-r0.

References

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