Local code execution via unbounded environment path copy
Published Apr 18, 2025 · Updated Apr 18, 2025
Buffer overflow in Astrolog 7.70 allows local users to execute arbitrary code or crash the application through a crafted environment variable. FileOpen reads path environment variables with getenv(), then uses unbounded sprintf() calls to concatenate their values into the fixed-size sz buffer. Exploitation requires local control of the process environment; the demonstrated result is a segmentation-fault crash, while memory corruption permits code execution in the Astrolog process context.
Summary
What happened
Buffer overflow in Astrolog 7.70 allows local users to execute arbitrary code or crash the application through a crafted environment variable. FileOpen reads path environment variables with getenv(), then uses unbounded sprintf() calls to concatenate their values into the fixed-size sz buffer. Exploitation requires local control of the process environment; the demonstrated result is a segmentation-fault crash, while memory corruption permits code execution in the Astrolog process context.
The record
- CVE
- CVE-2025-29625
- Published
- Apr 18, 2025
- Updated
- Apr 18, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1203
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Apr 18, 2025CVE publishedPublication date reported by the CVE source.
- Apr 18, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Astrolog environment-variable crash proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo