CVE-2015-7691

CWE-20 — Improper Input ValidationCWE-119 — Buffer OverflowCWE-22 — Path TraversalCWE-264CWE-287 — Improper AuthenticationCWE-39910 documents9 sources
Severity
7.5HIGH
EPSS
11.8%
top 6.30%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
NTP NTPDebian Debian LinuxOracle Linux+6 more
Timeline
PublishedAug 7
Latest updateMay 13

Description

The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash) via crafted packets containing particular autokey operations. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages6 packages

▶NVDntp/ntp4.2.0 — 4.2.8+2
▶Debianntp< 1:4.2.8p4+dfsg-1

Also affects: Debian Linux 7.0, 8.0, 9.0, Enterprise Linux 7.3, 7.4, 7.6, 7.7, 7.5

🔴Vulnerability Details

3
GHSA
GHSA-2cm3-5rf2-6c3w: The crypto_xmit function in ntpd in NTP 4↗2022-05-13
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CVEList
CVE-2015-7691: The crypto_xmit function in ntpd in NTP 4↗2017-08-07
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OSV
CVE-2015-7691: The crypto_xmit function in ntpd in NTP 4↗2017-08-07
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📋Vendor Advisories

4
Ubuntu
NTP vulnerabilities↗2015-10-27
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Cisco
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015↗2015-10-22
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Red Hat
ntp: incomplete checks in ntp_crypto.c↗2015-10-21
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Debian
CVE-2015-7691: ntp - The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4...↗2015
▶

💬Community

2
Bugzilla
CVE-2015-7692 CVE-2015-7871 CVE-2015-7852 CVE-2015-7701 CVE-2015-7702 CVE-2015-7691 ntp: various flaws [fedora-all]↗2015-10-22
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Bugzilla
CVE-2015-7691 CVE-2015-7692 CVE-2015-7702 ntp: incomplete checks in ntp_crypto.c↗2015-10-22
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