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CVE-2009-1252

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2...

6.8 MediumFix available

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Exploit likelihood

21.3%Up 9.0 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.8

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Record
CVE-2009-1252
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Record
CVE-2009-1252
Updated
2026-11-02
EUVDEUVD-2009-1251 No score

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Record
EUVD-2009-1251
Updated
2026-11-03
GitHub AdvisoriesGHSA-x2p2-g54c-2jqg No score

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2...

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Record
GHSA-x2p2-g54c-2jqg
Weakness
CWE-119
Updated
2026-11-02
OSV No score

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Record
CVE-2009-1252
Updated
2026-11-02
OSVDEBIAN-CVE-2009-1252 No score

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Record
DEBIAN-CVE-2009-1252
Updated
2026-11-02
OSVopenSUSE-SU-2024:10181-1 No score

ntp-4.2.8p9-1.1 on GA media

These are all security issues fixed in the ntp-4.2.8p9-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10181-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ntp
Debian:11
 before 1:4.2.4p6+dfsg-2
1:4.2.4p6+dfsg-2
ntp
Debian:4.0
From an advisory covering 2 CVEs
 before 1:4.2.2.p4+dfsg-2etch3, plus listed versions
1:4.2.2.p4+dfsg-21:4.2.2.p4+dfsg-2etch11:4.2.2.p4+dfsg-2etch2
1:4.2.2.p4+dfsg-2etch3
ntp
Debian:5.0
From an advisory covering 2 CVEs
 before 1:4.2.4p4+dfsg-8lenny2, plus listed versions
1:4.2.4p4+dfsg-8
1:4.2.4p4+dfsg-8lenny2
ntp
Red Hat:enterprise_linux:5::client
From an advisory covering 2 CVEs
 before 0:4.2.2p1-9.el5_3.2
0:4.2.2p1-9.el5_3.2
ntp-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 2 CVEs
 before 0:4.2.2p1-9.el5_3.2
0:4.2.2p1-9.el5_3.2
ntp
Red Hat:enterprise_linux:5::server
From an advisory covering 2 CVEs
 before 0:4.2.2p1-9.el5_3.2
0:4.2.2p1-9.el5_3.2
ntp-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 2 CVEs
 before 0:4.2.2p1-9.el5_3.2
0:4.2.2p1-9.el5_3.2
ntp
Red Hat:rhel_eus:4.7::as
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp-debuginfo
Red Hat:rhel_eus:4.7::as
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
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Affected packages
PackageAffectedFixed
ntp-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp
Red Hat:rhel_eus:4.7::es
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp-debuginfo
Red Hat:rhel_eus:4.7::es
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
 before 0:4.2.0.a.20040617-8.el4_7.2
0:4.2.0.a.20040617-8.el4_7.2
ntp
openSUSE:Tumbleweed
From an advisory covering 60 CVEs
 before 4.2.8p9-1.1
4.2.8p9-1.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-1252 is a medium vulnerability (CVSS 6.8) in Ntp, published May 19, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 21.3%, the 97th percentile. Fixed in ntp 1:4.2.4p6+dfsg-2.

References

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