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Medium severity6.5NVD Advisory· Published Dec 9, 2019· Updated Jun 17, 2026

CVE-2015-1853

CVE-2015-1853

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Chrony/Chronycpe-rescue3 versions
    before 1.31.1+ 2 more
    • (no CPE)range: before 1.31.1
    • (no CPE)range: <1.31.1
    • cpe:2.3:a:tuxfamily:chrony:*:*:*:*:*:*:*:*range: <1.31.1

Patches

Vulnerability mechanics

References

2

News mentions

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