Out-of-bounds write in Tcpdump - CVE-2023-1801

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Main Vulnerability Database Vulnerabilities #VU79709

Out-of-bounds write in Tcpdump - CVE-2023-1801

Published: August 18, 2023


Vulnerability identifier: #VU79709
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-1801
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error  within the SMB protocol decoder. A remote attacker can send specially crafted over the network, trigger an out-of-bounds write and crash the application.


Affected software

Tcpdump
LANTIME Operating System Firmware (LTOS)
macOS
openEuler
Fedora
libpcap
tcpdump-help
tcpdump
tcpdump-debugsource
tcpdump-debuginfo

How to mitigate CVE-2023-1801

Install updates from vendor's website.

Tcpdump - update to 4.99.4
LANTIME Operating System Firmware (LTOS) - update to 7.06.014
macOS - addressed in versions 11.7.9 20G1426, 12.6.8 21G725, 13.5 22G74
libpcap - addressed in versions 1.10.4-1.fc36, 1.10.4-1.fc37, 1.10.4-1.fc38, 1.10.4-1.fc39
tcpdump-help - update to 4.99.1-6
tcpdump - update to 4.99.1-6
tcpdump-debugsource - update to 4.99.1-6
tcpdump-debuginfo - update to 4.99.1-6
tcpdump - addressed in versions 4.99.4-1.fc36, 4.99.4-1.fc38, 4.99.4-1.fc39, 4.99.4-2.fc37

External References

Related Security Bulletins