vulnwire
7.5high

CVE-2017-0377

Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allo…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.4%
percentile 84%
Public exploits
0
none known

Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.

Exploit prediction (EPSS)

2.45% probability of exploitation in the next 30 days, higher than 84% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a Tor

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

  • trac.torproject.org /projects/tor/ticket/22753 · x_refsource_CONFIRM, x_transferred
  • security-tracker.debian.org /CVE-2017-0377 · x_refsource_CONFIRM, x_transferred
  • blog.torproject.org /blog/tor-0309-released-security-update-clients · x_refsource_CONFIRM, x_transferred
  • blog.torproject.org /blog/tor-0314-alpha-released-security-update-clients · x_refsource_CONFIRM, x_transferred
  • github.com /torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350 · x_refsource_CONFIRM, x_transferred

Sources

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