MEDIUM
ntp: remote arbitrary code execution vulnerability if autokeys is enabled
Published May 19, 2009
6.8
MEDIUMCVSS 2.0
EPSS 21.29%
Description
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.
Affected products
No data.
OR
- 4.2.4p0
- 4.2.4p1
- 4.2.4p2
- 4.2.4p3
- 4.2.4p4
- 4.2.4p5
- 4.2.4p6
- 4.2.5p0
- 4.2.5p1
- 4.2.5p2
- 4.2.5p3
- 4.2.5p4
- 4.2.5p5
- 4.2.5p6
- 4.2.5p7
- 4.2.5p8
- 4.2.5p9
- 4.2.5p10
- 4.2.5p11
- 4.2.5p12
- 4.2.5p13
- 4.2.5p14
- 4.2.5p15
- 4.2.5p16
- 4.2.5p17
- 4.2.5p18
- 4.2.5p19
- 4.2.5p20
- 4.2.5p21
- 4.2.5p23
- 4.2.5p24
- 4.2.5p25
- 4.2.5p26
- 4.2.5p27
- 4.2.5p28
- 4.2.5p29
- 4.2.5p30
- 4.2.5p31
- 4.2.5p32
- 4.2.5p33
- 4.2.5p35
- 4.2.5p36
- 4.2.5p37
- 4.2.5p38
- 4.2.5p39
- 4.2.5p40
- 4.2.5p41
- 4.2.5p42
- 4.2.5p43
- 4.2.5p44
- 4.2.5p45
- 4.2.5p46
- 4.2.5p47
- 4.2.5p48
- 4.2.5p49
- 4.2.5p50
- 4.2.5p51
- 4.2.5p52
- 4.2.5p53
- 4.2.5p54
- 4.2.5p55
- 4.2.5p56
- 4.2.5p57
- 4.2.5p58
- 4.2.5p59
- 4.2.5p60
- 4.2.5p61
- 4.2.5p62
- 4.2.5p63
- 4.2.5p64
- 4.2.5p65
- 4.2.5p66
- 4.2.5p67
- 4.2.5p68
- 4.2.5p69
- 4.2.5p70
- 4.2.5p71
- 4.2.5p73
No data.
Red Hat Enterprise Linux 4
ntp-0:4.2.0.a.20040617-8.el4_7.2
Fixed · RHSA-2009:1040
Red Hat Enterprise Linux 4.7 Z Stream
ntp-0:4.2.0.a.20040617-8.el4_7.2
Fixed · RHSA-2009:1040
Red Hat Enterprise Linux 5
ntp-0:4.2.2p1-9.el5_3.2
Fixed · RHSA-2009:1039
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | ntp-0:4.2.0.a.20040617-8.el4_7.2 | Fixed | RHSA-2009:1040 |
| Red Hat Enterprise Linux 4.7 Z Stream | ntp-0:4.2.0.a.20040617-8.el4_7.2 | Fixed | RHSA-2009:1040 |
| Red Hat Enterprise Linux 5 | ntp-0:4.2.2p1-9.el5_3.2 | Fixed | RHSA-2009:1039 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
21.29% 0.21286
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.21286
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 21.29% (0.21286) | 97.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 21.20% (0.21197) | 97.26th | v5 (v2026.06.15) |
| Jun 7, 2026 | 72.14% (0.72138) | 98.77th | v4 (v2025.03.14) |
| Mar 16, 2026 | 70.25% (0.70247) | 98.65th | v4 (v2025.03.14) |
| Feb 5, 2026 | 68.40% (0.68397) | 98.56th | v4 (v2025.03.14) |
| Dec 5, 2025 | 51.10% (0.51100) | 97.73th | v4 (v2025.03.14) |
| Sep 25, 2025 | 47.10% (0.47099) | 97.62th | v4 (v2025.03.14) |
| Jun 23, 2025 | 56.02% (0.56015) | 97.94th | v4 (v2025.03.14) |
| May 26, 2025 | 53.60% (0.53599) | 97.82th | v4 (v2025.03.14) |
| Mar 30, 2025 | 56.02% (0.56015) | 97.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 61.02% (0.61025) | 97.58th | v4 (v2025.03.14) |
| Mar 17, 2025 | 56.02% (0.56015) | 97.87th | v4 (v2025.03.14) |
| Dec 12, 2024 | 96.44% (0.96437) | 99.64th | v3 (v2023.03.01) |
| Jul 8, 2024 | 96.44% (0.96437) | 99.59th | v3 (v2023.03.01) |
| Jun 1, 2024 | 96.27% (0.96268) | 99.53th | v3 (v2023.03.01) |
| Dec 28, 2023 | 96.39% (0.96385) | 99.45th | v3 (v2023.03.01) |
| Oct 6, 2023 | 96.44% (0.96442) | 99.41th | v3 (v2023.03.01) |
| Aug 22, 2023 | 96.65% (0.96653) | 99.47th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.79% (0.96791) | 99.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.25% (0.12248) | 95.30th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.25% (0.12248) | 94.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.25% (0.12248) | 89.34th | v2 (v2022.01.01) |
Weaknesses (2)
References (42)
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-006.txt.asc vendor-advisoryx_refsource_NETBSD
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2009-1039.html vendor-advisoryx_refsource_REDHATPatch
- http://rhn.redhat.com/errata/RHSA-2009-1040.html vendor-advisoryx_refsource_REDHATPatch
- http://secunia.com/advisories/35137 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35138 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35166 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35169 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35243 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35253 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35308 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35336 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35388 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35416 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35630 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/37470 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/37471 third-party-advisoryx_refsource_SECUNIA
- http://security.freebsd.org/advisories/FreeBSD-SA-09:11.ntpd.asc vendor-advisoryx_refsource_FREEBSD
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.566238 vendor-advisoryx_refsource_SLACKWARE
- http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0092 x_refsource_CONFIRM
- http://www.debian.org/security/2009/dsa-1801 vendor-advisoryx_refsource_DEBIAN
- http://www.gentoo.org/security/en/glsa/glsa-200905-08.xml vendor-advisoryx_refsource_GENTOO
- http://www.kb.cert.org/vuls/id/853097 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:117 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/archive/1/507985/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/35017 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1022243 vdb-entryx_refsource_SECTRACK
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html x_refsource_CONFIRM
- http://www.vupen.com/english/advisories/2009/1361 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2009/3316 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2009-1252 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=499694 x_refsource_CONFIRMPatchIssue Tracking
- https://launchpad.net/bugs/cve/2009-1252 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2009-1252
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11231 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6307 vdb-entrysignaturex_refsource_OVAL
- https://support.ntp.org/bugs/show_bug.cgi?id=1151 x_refsource_CONFIRM
- https://usn.ubuntu.com/777-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2009-1252
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00293.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01414.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01449.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 19, 2009
Updated Aug 7, 2024
Reserved Apr 7, 2009
Link CVE-2009-1252
CISA Vulnrichment
Updated n/a