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[email protected]CVE-2015-2689

HistoryJan 24, 2020 - 6:15 p.m.

CVE-2015-2689

2020-01-2418:15:12

CWE-20

[email protected]

web.nvd.nist.gov

tor

denial of service

cve-2015-2689

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.2 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.5%

JSON

Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.

Affected configurations

NVD

Node

torprojecttorRange<0.2.4.26

torprojecttorRange0.2.5.1–0.2.5.11

CPENameOperatorVersion
torproject:tortorproject torlt0.2.4.26
torproject:tortorproject torlt0.2.5.11

CPE	Name	Operator	Version
torproject:tor	torproject tor	lt	0.2.4.26
torproject:tor	torproject tor	lt	0.2.5.11

CNA Affected

[
  {
    "product": "Tor",
    "vendor": "The Tor Project",
    "versions": [
      {
        "status": "affected",
        "version": "before 0.2.4.26"
      },
      {
        "status": "affected",
        "version": "0.2.5.x before 0.2.5.11"
      }
    ]
  }
]