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RedhatCVE-2015-1853

HistoryDec 09, 2019 - 7:15 p.m.

CVE-2015-1853

2019-12-0919:15:14

redhat

web.nvd.nist.gov

chrony

ntp

security vulnerability

denial of service

cve-2015-1853

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

50.1%

JSON

chrony before 1.31.1 does not properly protect state variables in authenticated symmetric NTP associations, which allows remote attackers with knowledge of NTP peering to cause a denial of service (inability to synchronize) via random timestamps in crafted NTP data packets.

Affected configurations

Nvd

Vulners

Node

tuxfamilychronyRange<1.31.1

VendorProductVersionCPE
tuxfamilychrony*cpe:2.3:a:tuxfamily:chrony:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
tuxfamily	chrony	*	cpe:2.3:a:tuxfamily:chrony::::::::

CNA Affected

[
  {
    "product": "chrony",
    "vendor": "chrony",
    "versions": [
      {
        "status": "affected",
        "version": "before 1.31.1"
      }
    ]
  }
]