CVE-2018-11490 : What You Need to Know
Learn about CVE-2018-11490, a heap-based buffer overflow vulnerability in the function DGifDecompressLine within GIFLIB, potentially leading to denial of service. Find out how to mitigate and prevent this vulnerability.
CVE-2018-11490 is a heap-based buffer overflow vulnerability in the function DGifDecompressLine within GIFLIB, potentially affecting version 3.0.x. This vulnerability could lead to denial of service or other unexpected outcomes.
Understanding CVE-2018-11490
What is CVE-2018-11490?
The function DGifDecompressLine in dgif_lib.c within GIFLIB (potentially version 3.0.x) may have a heap-based buffer overflow vulnerability. This occurs due to the lack of verification of a specific array index, potentially leading to denial of service or other unforeseen consequences.
The Impact of CVE-2018-11490
This vulnerability could result in a denial of service or other unexpected consequences.
Technical Details of CVE-2018-11490
Vulnerability Description
The vulnerability lies in the function DGifDecompressLine within GIFLIB, potentially version 3.0.x, due to the lack of verification of a specific array index.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Versions: n/a (affected)
Exploitation Mechanism
The vulnerability can be exploited through a heap-based buffer overflow in the DGifDecompressLine function within GIFLIB.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest security updates provided by the vendor.
- Monitor vendor advisories and security mailing lists for patches.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement secure coding practices to prevent buffer overflow vulnerabilities.
Patching and Updates
Ensure to apply the security update released by GIFLIB to address the heap-based buffer overflow vulnerability.