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CVE-2023-1801

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when...

6.5 MediumFix available

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.84%Up 0.8 points since Apr 8, 2023
90%50%10%1%

What each source reports

NVD Score used 6.5

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

Record
CVE-2023-1801
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

Record
CVE-2023-1801
Weakness
CWE-787
Updated
2026-11-02
EUVDEUVD-2023-24003 No score

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

Record
EUVD-2023-24003
Updated
2026-11-03
GitHub AdvisoriesGHSA-44xc-f95p-5vmh 9.8

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when...

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

Record
GHSA-44xc-f95p-5vmh
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
OSVDEBIAN-CVE-2023-1801 6.5

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

Record
DEBIAN-CVE-2023-1801
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2023-1243 5.5

tcpdump security update

Tcpdump is a command-line tool for monitoring network traffic. Tcpdump can capture and display the packet headers on a particular network interface or on all interfaces. Tcpdump can display all of the packet headers, or just the ones that match particular criteria.

Security Fix(es):

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.(CVE-2023-1801)

Record
OESA-2023-1243
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVOESA-2023-1244 5.5

tcpdump security update

Tcpdump is a command-line tool for monitoring network traffic. Tcpdump can capture and display the packet headers on a particular network interface or on all interfaces. Tcpdump can display all of the packet headers, or just the ones that match particular criteria.

Security Fix(es):

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.(CVE-2023-1801)

Record
OESA-2023-1244
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV No score

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

Record
CVE-2023-1801
Weakness
CWE-787
Updated
2026-11-02
OSVMGASA-2023-0154 No score

Updated tcpdump packages fix security vulnerability

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet. (CVE-2023-1801)

Record
MGASA-2023-0154
Updated
2026-11-02
OSVopenSUSE-SU-2024:12850-1 No score

tcpdump-4.99.4-1.1 on GA media

These are all security issues fixed in the tcpdump-4.99.4-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12850-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
tcpdump
Debian:12
All versions, plus listed versions
4.99.3-14.99.4-14.99.4-24.99.4-34.99.4-4
Show 6 moreShow less
4.99.4-54.99.5-14.99.5-24.99.5-34.99.6-14.99.6-2
None known
tcpdump
Debian:13
before 4.99.4-2
4.99.4-2
tcpdump
Debian:14
before 4.99.4-2
4.99.4-2
tcpdump
Mageia:8
before 4.99.2-1.1.mga8
4.99.2-1.1.mga8
tcpdump
openEuler:22.03-LTS
before 4.99.1-6.oe2203
4.99.1-6.oe2203
tcpdump
openEuler:22.03-LTS-SP1
before 4.99.1-6.oe2203sp1
4.99.1-6.oe2203sp1
tcpdump
openSUSE:Tumbleweed
before 4.99.4-1.1
4.99.4-1.1

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2023-1801 is a medium vulnerability (CVSS 6.5) in Tcpdump, published April 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.84%, the 58th percentile. Fixed in tcpdump 4.99.4-2.

References

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