{"affected":[{"defaultStatus":"unaffected","ecosystem":"https://www.openssh.com/","packageName":"OpenSSH","product":"","source":"CNA: redhat","vendor":"","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openssh","product":"Red Hat Enterprise Linux 9","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.7p1-38.el9_4.4","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openssh","product":"Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.7p1-12.el9_0.3","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openssh","product":"Red Hat Enterprise Linux 9.2 Extended Update Support","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.7p1-30.el9_2.7","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"openshift/ose-rhel-coreos-9","product":"Red Hat OpenShift Container Platform 4.13","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"413.92.202408122222-0","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"openshift/ose-rhel-coreos-9","product":"Red Hat OpenShift Container Platform 4.14","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"414.92.202407300859-0","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"openshift/ose-rhel-coreos-9","product":"Red Hat OpenShift Container Platform 4.15","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"415.92.202407301159-0","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"openshift/ose-rhel-coreos-9","product":"Red Hat OpenShift Container Platform 4.16","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"416.94.202407171205-0","versionType":"rpm"}]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openssh","product":"Red Hat Enterprise Linux 10","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openssh","product":"Red Hat Enterprise Linux 6","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openssh","product":"Red Hat Enterprise Linux 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openssh","product":"Red Hat Enterprise Linux 8","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]}],"cveId":"CVE-2024-6409","cwes":["CWE-364"],"description":"A race condition vulnerability was discovered in how signals are handled by OpenSSH's server (sshd). If a remote attacker does not authenticate within a set time period, then sshd's SIGALRM handler is called asynchronously. However, this signal handler calls various functions that are not async-signal-safe, for example, syslog(). As a consequence of a successful attack, in the worst case scenario, an attacker may be able to perform a remote code execution (RCE) as an unprivileged user running the sshd server.","epss":{"date":"2026-11-03","percentile":0.98102,"score":0.27935},"exploits":[],"kev":null,"metrics":[{"score":7,"severity":"high","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},{"score":7,"severity":"high","source":"NVD: secalert@redhat.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"}],"modifiedAt":1793744249350,"publishedAt":1720461430517,"references":[{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2024:4457"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2024:4613"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2024:4716"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2024:4910"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2024:4955"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2024:4960"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2024:5444"},{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2024-6409"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2295085"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2024/07/08/2"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2024/07/09/2"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2024/07/09/5"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2024/07/10/1"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2024/07/10/2"},{"source":"ADP: CVE","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/errata/RHSA-2024:4457"},{"source":"ADP: CVE","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/errata/RHSA-2024:4613"},{"source":"ADP: CVE","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/errata/RHSA-2024:4716"},{"source":"ADP: CVE","tags":["vdb-entry","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/security/cve/CVE-2024-6409"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://almalinux.org/blog/2024-07-09-cve-2024-6409/"},{"source":"ADP: CVE","tags":["issue-tracking","x_refsource_REDHAT","x_transferred"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2295085"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://bugzilla.suse.com/show_bug.cgi?id=1227217"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://explore.alas.aws.amazon.com/CVE-2024-6409.html"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://github.com/openela-main/openssh/commit/c00da7741d42029e49047dd89e266d91dcfbffa0"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://security-tracker.debian.org/tracker/CVE-2024-6409"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://security.netapp.com/advisory/ntap-20240712-0003/"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://sig-security.rocky.page/issues/CVE-2024-6409/"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://ubuntu.com/security/CVE-2024-6409"},{"source":"ADP: CVE","tags":["x_transferred"],"url":"https://www.suse.com/security/cve/CVE-2024-6409.html"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4457"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4613"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4716"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4910"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4955"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4960"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:5444"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/security/cve/CVE-2024-6409"},{"source":"secalert@redhat.com","tags":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2295085"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"http://www.openwall.com/lists/oss-security/2024/07/08/2"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"http://www.openwall.com/lists/oss-security/2024/07/09/2"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"http://www.openwall.com/lists/oss-security/2024/07/09/5"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"http://www.openwall.com/lists/oss-security/2024/07/10/1"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"http://www.openwall.com/lists/oss-security/2024/07/10/2"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4457"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4613"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://access.redhat.com/errata/RHSA-2024:4716"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://access.redhat.com/security/cve/CVE-2024-6409"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://almalinux.org/blog/2024-07-09-cve-2024-6409/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2295085"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://bugzilla.suse.com/show_bug.cgi?id=1227217"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://explore.alas.aws.amazon.com/CVE-2024-6409.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://github.com/openela-main/openssh/commit/c00da7741d42029e49047dd89e266d91dcfbffa0"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://security-tracker.debian.org/tracker/CVE-2024-6409"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://security.netapp.com/advisory/ntap-20240712-0003/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://sig-security.rocky.page/issues/CVE-2024-6409/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://ubuntu.com/security/CVE-2024-6409"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"https://www.suse.com/security/cve/CVE-2024-6409.html"},{"source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"The process is identical to CVE-2024-6387, by disabling LoginGraceTime. See that CVE page for additional details."}],"revision":"2c038ff7f430339fdbb7c0ab3f385de16c557250733f493c384faf08ec1a377f","sources":[{"modifiedAt":1793742764957,"name":"CNA: redhat","retrievedAt":1793744098796,"url":"https://www.cve.org/CVERecord?id=CVE-2024-6409"},{"modifiedAt":1793744249350,"name":"NVD","retrievedAt":1793751359595,"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-6409"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793747325026,"url":"https://api.first.org/data/v1/epss?cve=CVE-2024-6409"}],"ssvc":{"assessedAt":1720756531094,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Openssh: possible remote code execution due to a race condition in signal handling affecting red hat enterprise linux 9","updatedAt":1793751359595}