CVE-2018-10195 : What You Need to Know

Versions of lrzsz prior to 0.12.21~rc may inadvertently disclose information to the recipient due to an inaccurate length verification in the zsdata function, which leads to an unintended wrapping of a size_t value.

Understanding CVE-2018-10195

lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.

What is CVE-2018-10195?

CVE-2018-10195 is a vulnerability in lrzsz versions prior to 0.12.21~rc that can result in the unintentional disclosure of information to the recipient due to a flaw in length verification.

The Impact of CVE-2018-10195

This vulnerability can lead to the unintended wrapping of a size_t value, potentially exposing sensitive information to unauthorized parties.

Technical Details of CVE-2018-10195

Vulnerability Description

Versions of lrzsz before 0.12.21~rc may inadvertently disclose information due to inaccurate length verification.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions affected: n/a

Exploitation Mechanism

The vulnerability arises from an incorrect length check in the zsdata function, causing a size_t value to wrap around and disclose information.

Mitigation and Prevention

Immediate Steps to Take

Update lrzsz to version 0.12.21~rc or newer to mitigate the vulnerability.
Monitor vendor security advisories for patches and updates.

Long-Term Security Practices

Regularly update software and systems to the latest versions to address known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential exploits.

Patching and Updates

Apply security patches promptly to ensure that known vulnerabilities are addressed and system security is maintained.