CVE-2017-7246 Explained : Impact and Mitigation
Learn about CVE-2017-7246, a vulnerability in PCRE version 8.40 that allows remote attackers to trigger a denial of service attack or other consequences via a specially crafted file. Find out how to mitigate this issue.
A vulnerability in the pcre32_copy_substring function within the libpcre1 library in PCRE version 8.40 can be exploited by remote attackers, potentially leading to a denial of service attack or other consequences.
Understanding CVE-2017-7246
This CVE entry describes a stack-based buffer overflow vulnerability in PCRE version 8.40.
What is CVE-2017-7246?
The vulnerability in the pcre32_copy_substring function in libpcre1 allows remote attackers to trigger a denial of service or other impacts by using a specially crafted file.
The Impact of CVE-2017-7246
The vulnerability may result in a denial of service attack with a WRITE operation of size 268 or potentially lead to other unspecified consequences.
Technical Details of CVE-2017-7246
This section provides more technical insights into the vulnerability.
Vulnerability Description
The stack-based buffer overflow in pcre32_copy_substring function in libpcre1 in PCRE 8.40 can be exploited by remote attackers.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Version: 8.40
Exploitation Mechanism
The attack is triggered by a specially crafted file.
Mitigation and Prevention
Protecting systems from the CVE-2017-7246 vulnerability is crucial.
Immediate Steps to Take
- Apply patches provided by the vendor promptly.
- Monitor security advisories for any updates.
Long-Term Security Practices
- Regularly update software and libraries.
- Implement network security measures to detect and prevent such attacks.
Patching and Updates
Ensure that the affected systems are updated with the latest patches to mitigate the vulnerability.