CVE-2017-7939 : Exploit Details and Defense Strategies
Learn about CVE-2017-7939, a denial of service vulnerability in ImageWorsener 1.3.0 that allows remote attackers to exploit a stack-based buffer over-read in the read_next_pam_token function.
ImageWorsener 1.3.0 allows remote attackers to cause a denial of service through a crafted file.
Understanding CVE-2017-7939
A denial of service vulnerability in ImageWorsener 1.3.0 can be exploited by remote attackers.
What is CVE-2017-7939?
The vulnerability in ImageWorsener 1.3.0 allows remote attackers to trigger a denial of service by exploiting a stack-based buffer over-read in the read_next_pam_token function.
The Impact of CVE-2017-7939
- Attackers can exploit a crafted file to cause a denial of service
- The vulnerability affects the read_next_pam_token function in imagew-pnm.c in libimageworsener.a
Technical Details of CVE-2017-7939
ImageWorsener 1.3.0 is susceptible to a denial of service vulnerability due to a stack-based buffer over-read.
Vulnerability Description
The read_next_pam_token function in imagew-pnm.c in libimageworsener.a in ImageWorsener 1.3.0 can be exploited by remote attackers to trigger a denial of service through a crafted file.
Affected Systems and Versions
- Product: ImageWorsener 1.3.0
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability is exploited by remote attackers using a crafted file to trigger a denial of service.
Mitigation and Prevention
Immediate Steps to Take:
- Apply security patches provided by the vendor
- Avoid opening files from untrusted sources
Long-Term Security Practices
- Regularly update software and systems
- Conduct security assessments and audits periodically
Patching and Updates
- Check for updates and patches from the vendor
- Apply security updates promptly to mitigate the vulnerability