vulnwire
7.5high

CVE-2016-8860

Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.9%
percentile 80%
Public exploits
0
none known

Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data.

Exploit prediction (EPSS)

1.93% probability of exploitation in the next 30 days, higher than 80% of all scored CVEs.

CVSS scores

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

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • blog.torproject.org /blog/tor-0289-released-important-fixes · x_refsource_CONFIRM, x_transferred
  • github.com /torproject/tor/commit/3cea86eb2fbb65949673eb4ba8ebb695c87a57ce · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201612-45 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • openwall.com /lists/oss-security/2016/10/19/11 · mailing-list, x_refsource_MLIST, x_transferred
  • trac.torproject.org /projects/tor/ticket/20384 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/95116 · vdb-entry, x_refsource_BID, x_transferred
  • debian.org /security/2016/dsa-3694 · vendor-advisory, x_refsource_DEBIAN, x_transferred

Sources

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