CVE-2018-10963 : Security Advisory and Response
Learn about CVE-2018-10963, a vulnerability in LibTIFF up to version 4.0.9 that allows remote attackers to trigger a denial of service by exploiting the TIFFWriteDirectorySec() function.
LibTIFF up to version 4.0.9 is vulnerable to a denial of service attack due to a flaw in the TIFFWriteDirectorySec() function. Attackers can exploit this remotely, leading to an assertion failure and application crash.
Understanding CVE-2018-10963
This CVE entry describes a vulnerability in LibTIFF that can be exploited remotely, potentially causing a denial of service.
What is CVE-2018-10963?
The vulnerability in the TIFFWriteDirectorySec() function in LibTIFF up to version 4.0.9 allows remote attackers to trigger an assertion failure, leading to a denial of service by crashing the application.
The Impact of CVE-2018-10963
The exploitation of this vulnerability can result in a denial of service condition, affecting the availability of the application. It is distinct from CVE-2017-13726.
Technical Details of CVE-2018-10963
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability in LibTIFF allows remote attackers to cause a denial of service through an assertion failure and application crash by exploiting the TIFFWriteDirectorySec() function.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Up to version 4.0.9
Exploitation Mechanism
Attackers can exploit this vulnerability remotely by crafting a malicious file that triggers the assertion failure, leading to a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2018-10963 involves taking immediate steps and implementing long-term security practices.
Immediate Steps to Take
- Apply patches provided by the vendor promptly.
- Monitor vendor advisories and security mailing lists for updates.
Long-Term Security Practices
- Regularly update software and libraries to patched versions.
- Implement network security measures to prevent remote exploitation.
- Conduct regular security assessments and penetration testing.
Patching and Updates
Ensure that the LibTIFF software is updated to version 4.0.10 or later to mitigate the vulnerability.