CVE-2020-35457 : Vulnerability Insights and Analysis
Learn about CVE-2020-35457, an integer overflow vulnerability in GNOME GLib before 2.65.3 that could lead to out-of-bounds writes. Find out the impact, affected systems, and mitigation steps.
GNOME GLib before 2.65.3 has an integer overflow vulnerability in g_option_group_add_entries that may result in an out-of-bounds write.
Understanding CVE-2020-35457
This CVE involves an integer overflow issue in GNOME GLib before version 2.65.3.
What is CVE-2020-35457?
- GNOME GLib before 2.65.3 is susceptible to an integer overflow leading to a potential out-of-bounds write in g_option_group_add_entries.
- The vendor's stance is that this may not be a security concern, as the standard practice involves callers providing a static list of option entries in a fixed number of calls to g_option_group_add_entries.
- The identified pattern by the researcher is considered undocumented.
The Impact of CVE-2020-35457
- The vulnerability could potentially allow an attacker to execute arbitrary code or crash the application.
Technical Details of CVE-2020-35457
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
- The integer overflow in g_option_group_add_entries could lead to an out-of-bounds write, posing a security risk.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: All versions before 2.65.3 are affected.
Exploitation Mechanism
- Attackers could exploit this vulnerability by crafting malicious input to trigger the integer overflow, potentially leading to unauthorized access or denial of service.
Mitigation and Prevention
Protective measures and actions to mitigate the risks associated with CVE-2020-35457.
Immediate Steps to Take
- Update GNOME GLib to version 2.65.3 or later to address the vulnerability.
- Monitor vendor communications for any additional security advisories or patches.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions to prevent known vulnerabilities.
- Implement secure coding practices to minimize the risk of similar integer overflow issues.
Patching and Updates
- Apply patches and updates provided by GNOME GLib promptly to ensure the security of the system.