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CVE-2024-6409

Openssh: possible remote code execution due to a race condition in signal handling affecting red hat enterprise linux 9

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Collection URLhttps://www.openssh.com/
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Paket OpenSSH
Default Statusunaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 9
Default Statusaffected
Version 0:8.7p1-38.el9_4.4
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 9
Default Statusaffected
Version 0:8.7p1-38.el9_4.4
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
Default Statusaffected
Version 0:8.7p1-12.el9_0.3
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 9.2 Extended Update Support
Default Statusaffected
Version 0:8.7p1-30.el9_2.7
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat OpenShift Container Platform 4.13
Default Statusaffected
Version 413.92.202408122222-0
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat OpenShift Container Platform 4.14
Default Statusaffected
Version 414.92.202407300859-0
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat OpenShift Container Platform 4.15
Default Statusaffected
Version 415.92.202407301159-0
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat OpenShift Container Platform 4.16
Default Statusaffected
Version 416.94.202407171205-0
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 10
Default Statusunaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 6
Default Statusunaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 7
Default Statusunaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 8
Default Statusunaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 27.94% 0.978
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 7 2.2 4.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE-364 Signal Handler Race Condition

The product uses a signal handler that introduces a race condition.

https://access.redhat.com/errata/RHSA-2024:4960
https://access.redhat.com/errata/RHSA-2024:4613
http://www.openwall.com/lists/oss-security/2024/07/08/2
http://www.openwall.com/lists/oss-security/2024/07/09/2
http://www.openwall.com/lists/oss-security/2024/07/09/5
http://www.openwall.com/lists/oss-security/2024/07/10/1
http://www.openwall.com/lists/oss-security/2024/07/10/2
https://access.redhat.com/errata/RHSA-2024:4457
https://access.redhat.com/errata/RHSA-2024:4716
https://access.redhat.com/errata/RHSA-2024:4910
https://access.redhat.com/errata/RHSA-2024:4955
https://access.redhat.com/errata/RHSA-2024:5444
https://access.redhat.com/security/cve/CVE-2024-6409
https://bugzilla.redhat.com/show_bug.cgi?id=2295085
https://almalinux.org/blog/2024-07-09-cve-2024-6409/
https://bugzilla.suse.com/show_bug.cgi?id=1227217
https://explore.alas.aws.amazon.com/CVE-2024-6409.html
https://github.com/openela-main/openssh/commit/c00da7741d42029e49047dd89e266d91dcfbffa0
https://security-tracker.debian.org/tracker/CVE-2024-6409
https://security.netapp.com/advisory/ntap-20240712-0003/
https://sig-security.rocky.page/issues/CVE-2024-6409/
https://ubuntu.com/security/CVE-2024-6409
https://www.suse.com/security/cve/CVE-2024-6409.html