CVE-2019-10899 : Exploit Details and Defense Strategies
Learn about CVE-2019-10899, a heap-based buffer under-read issue in Wireshark versions 2.4.0 to 2.4.13, 2.6.0 to 2.6.7, and 3.0.0. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A heap-based buffer under-read issue in the SRVLOC dissector has been resolved in versions 2.4.0 to 2.4.13, 2.6.0 to 2.6.7, and 3.0.0 of Wireshark. The problem has been addressed in the epan/dissectors/packet-srvloc.c file to prevent crashes.
Understanding CVE-2019-10899
This CVE entry addresses a specific vulnerability in Wireshark versions 2.4.0 to 2.4.13, 2.6.0 to 2.6.7, and 3.0.0 related to a heap-based buffer under-read issue in the SRVLOC dissector.
What is CVE-2019-10899?
Wireshark versions 2.4.0 to 2.4.13, 2.6.0 to 2.6.7, and 3.0.0 were susceptible to a heap-based buffer under-read issue in the SRVLOC dissector, which could lead to crashes.
The Impact of CVE-2019-10899
The vulnerability could potentially allow attackers to crash the Wireshark application by exploiting the heap-based buffer under-read issue in the SRVLOC dissector.
Technical Details of CVE-2019-10899
This section provides more in-depth technical details about the CVE.
Vulnerability Description
The vulnerability in Wireshark versions 2.4.0 to 2.4.13, 2.6.0 to 2.6.7, and 3.0.0 was related to a heap-based buffer under-read issue in the SRVLOC dissector, which has been fixed.
Affected Systems and Versions
- Wireshark versions 2.4.0 to 2.4.13
- Wireshark versions 2.6.0 to 2.6.7
- Wireshark version 3.0.0
Exploitation Mechanism
The vulnerability could be exploited by crafting a malicious packet that triggers the heap-based buffer under-read in the SRVLOC dissector, potentially leading to a crash.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Update Wireshark to the latest patched version to mitigate the risk of exploitation.
- Monitor official security advisories and apply patches promptly.
Long-Term Security Practices
- Regularly update and patch all software to prevent known vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
Ensure that all systems running Wireshark are regularly updated with the latest security patches to protect against known vulnerabilities.