Buffer-overread vulnerability in StringIO in Ruby
Summary
CVE-2024-27280: A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. Affects ruby versions < 3.1.5-r0. Fixed in 3.1.5-r0. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
StringIO is a class in Ruby that provides a way to treat a string as a file. It allows reading from and writing to a string as if it were a file. This vulnerability affects StringIO versions 3.0.1 through 3.0.6 in Ruby 3.0.x and versions 3.1.x through 3.1.4 in Ruby 3.1.x. The ungetbyte and ungetc methods in StringIO can read beyond the end of a string, and subsequent calls to StringIO.gets may return the memory value.
Vulnerability Detail
The buffer-overread vulnerability in StringIO can lead to the exposure of sensitive information or the execution of arbitrary code. By manipulating the ungetbyte and ungetc methods, an attacker can read memory values beyond the intended boundaries of a string. This can result in the disclosure of sensitive data or the execution of malicious code, potentially leading to a compromise of the system.
How To Fix
Minimum fixed version
3.1.5-r0
This is the first release that contains the fix.
sudo apk add --upgrade rubyTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The buffer-overread vulnerability in StringIO in Ruby can lead to the exposure of sensitive information or the execution of arbitrary code. It is recommended to update to the fixed versions of StringIO to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for ruby →
FAQ
StringIO is a class in Ruby that provides a way to treat a string as a file. It allows reading from and writing to a string as if it were a file.
This vulnerability affects Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4.
The buffer-overread vulnerability in StringIO can lead to the exposure of sensitive information or the execution of arbitrary code, potentially compromising the system.
To fix this vulnerability, update to the fixed versions of StringIO: stringio 3.0.1.1 for Ruby 3.0 users and stringio 3.0.1.2 for Ruby 3.1 users.
No specific workaround is mentioned for this vulnerability.
Related vulnerabilities
Recent vulnerabilities recorded for ruby.
