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cveDebianCVE-2017-8823
HistoryDec 03, 2017 - 7:29 a.m.

CVE-2017-8823

2017-12-0307:29:00
CWE-416
debian
web.nvd.nist.gov
42
tor
cve-2017-8823
security
trove-2017-013
use-after-free
nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.003

Percentile

68.1%

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, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013.

Affected configurations

Nvd
Node
tor_projecttorRange<0.2.5.16
OR
tor_projecttorRange0.2.60.2.8.17
OR
tor_projecttorRange0.2.90.2.9.14
OR
tor_projecttorRange0.3.00.3.0.13
OR
tor_projecttorRange0.3.10.3.1.9
Node
debiandebian_linuxMatch8.0
OR
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:*:*:*:*:*:*:*

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"
      }
    ]
  }
]

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.003

Percentile

68.1%