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DebianCVE-2017-8821

HistoryDec 03, 2017 - 7:29 a.m.

CVE-2017-8821

2017-12-0307:29:00

CWE-119

debian

web.nvd.nist.gov

cve-2017-8821

tor

denial of service

pem input

openssl

trove-2017-011

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.2

Confidence

High

EPSS

0.003

Percentile

65.8%

JSON

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, an attacker can cause a denial of service (application hang) via crafted PEM input that signifies a public key requiring a password, which triggers an attempt by the OpenSSL library to ask the user for the password, aka TROVE-2017-011.

Affected configurations

Nvd

Node

tor_projecttorRange<0.2.5.16

tor_projecttorRange0.2.6–0.2.8.17

tor_projecttorRange0.2.9–0.2.9.14

tor_projecttorRange0.3.0–0.3.0.13

tor_projecttorRange0.3.1–0.3.1.9

Node

debiandebian_linuxMatch8.0

debiandebian_linuxMatch9.0

VendorProductVersionCPE
tor_projecttor*cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:*
debiandebian_linux8.0cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
tor_project	tor	*	cpe:2.3:a:tor_project:tor::::::::
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*

CNA Affected

[
  {
    "product": "Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9"
      }
    ]
  }
]