PatchTheCVECVE-2008-5398: Tor before 0.2.0.32 does not properly process the ClientDNSRejectInternalAddresses configuration option in sit
CVE-2008-5398 is a high-severity flaw (CVSS 9.3) affecting tor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Tor before 0.2.0.32 does not properly process the ClientDNSRejectInternalAddresses configuration option in situations where an exit relay issues a policy-based refusal of a stream, which allows remote exit relays to have an unknown impact by mapping an internal IP address to the destination hostname of a refused stream.
Why this priority
- Critical severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.3 (High) |
| EPSS exploit chance | 2.0% (top 19%) |
| CISA exploited list | No |
| Weakness | CWE-264 |
| Published | 2008-12-09 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2008-5398?
tor: upgrade to newer than 0.1.2.31. Exact commands for each OS are on this page.
Is CVE-2008-5398 being exploited?
CVE-2008-5398 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2008-5398 affect?
CVE-2008-5398 affects tor. Severity is high (CVSS 9.3). Tor before 0.2.0.32 does not properly process the ClientDNSRejectInternalAddresses configuration option in situations where an exit relay issues a policy-based refusal of a stream, which allows remote exit relays to have an unknown impact b
How urgent is CVE-2008-5398?
Priority 53/100. Critical severity
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