VulnerabilityModified

CVE-2017-0376

The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the connection_edge_process_relay_cell function via a BEGIN_DIR cell on a rendezvous circuit.

HIGH 7.5EPSS 2.18%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 2.18% probability · 81th percentile
CISA KEV: Not listed
Weakness: CWE-617
Affected: torproject/tor · debian/debian linux
Source: security@debian.org

References

http://www.debian.org/security/2017/dsa-3877Third Party Advisory
https://github.com/torproject/tor/commit/56a7c5bc15e0447203a491c1ee37de9939ad1dcdIssue Tracking, Patch, Third Party Advisory
https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.htmlMailing List, Third Party Advisory
https://trac.torproject.org/projects/tor/ticket/22494Issue Tracking, Third Party Advisory
http://www.debian.org/security/2017/dsa-3877Third Party Advisory
https://github.com/torproject/tor/commit/56a7c5bc15e0447203a491c1ee37de9939ad1dcdIssue Tracking, Patch, Third Party Advisory
https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.htmlMailing List, Third Party Advisory
https://trac.torproject.org/projects/tor/ticket/22494Issue Tracking, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.