CVE-2017-5375 : What You Need to Know
Learn about CVE-2017-5375, a vulnerability in Thunderbird and Firefox versions < 45.7, allowing for RAM corruption attacks through JIT code allocation. Find mitigation steps and updates here.
A possible RAM corruption attack can be facilitated through JIT code allocation, which can evade protection measures such as ASLR and DEP. Thunderbird versions that are prior to 45.7, Firefox ESR versions that are prior to 45.7, and Firefox versions that are prior to 51 are impacted by this vulnerability.
Understanding CVE-2017-5375
What is CVE-2017-5375?
CVE-2017-5375 is a vulnerability that allows for a possible RAM corruption attack through JIT code allocation, enabling the bypass of ASLR and DEP protections.
The Impact of CVE-2017-5375
This vulnerability affects Thunderbird versions < 45.7, Firefox ESR versions < 45.7, and Firefox versions < 51, potentially leading to memory corruption attacks.
Technical Details of CVE-2017-5375
Vulnerability Description
Excessive JIT code allocation can allow an attacker to bypass ASLR and DEP protections, leading to potential memory corruption attacks.
Affected Systems and Versions
- Thunderbird < 45.7
- Firefox ESR < 45.7
- Firefox < 51
Exploitation Mechanism
The vulnerability exploits JIT code allocation to evade ASLR and DEP protections, enabling attackers to corrupt memory.
Mitigation and Prevention
Immediate Steps to Take
- Update Thunderbird, Firefox ESR, and Firefox to versions 45.7 and 51 respectively.
- Implement security patches provided by Mozilla.
Long-Term Security Practices
- Regularly update software to the latest versions.
- Employ additional security measures to mitigate memory corruption attacks.
Patching and Updates
Apply security patches released by Mozilla to address the vulnerability.