GitHub Advisoryadvisory · RubyGems
GHSA-2xvj-j3qh-x8c3 private_address_check contains race condition
HIGH
Official page ↗
- Aliases
- CVE-2018-3759
- Ecosystem
- RubyGems
- Packages
- private_address_check
- Severity
- High
- Weaknesses
- CWE-362
- Reviewed
- 2020-06-16
Affected packages
• RubyGems private_address_check: < 0.5.0 → fixed in 0.5.0
Description
The private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address.
Related
Alias · CVE (1)
- CVE-2018-3759 private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the… vulnerability
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-3759 advisory
- https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147 web
- https://github.com/advisories/GHSA-2xvj-j3qh-x8c3 advisory
- https://github.com/jtdowney/private_address_check package
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/private_address_check/CVE-2018-3759.yml web