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NOTICE UPDATED - May, 29th 2024

The NVD has a new announcement page with status updates, news, and how to stay connected!

CVE-2024-6387 Detail

Current Description

A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.


View Analysis Description

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2024/07/01/12 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/01/13 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/02/1 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/03/1 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/03/11 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/03/2 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/03/3 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/03/4 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/03/5 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/04/1 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/04/2 Mailing List 
http://www.openwall.com/lists/oss-security/2024/07/08/2
http://www.openwall.com/lists/oss-security/2024/07/08/3
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
http://www.openwall.com/lists/oss-security/2024/07/10/3
http://www.openwall.com/lists/oss-security/2024/07/10/4
http://www.openwall.com/lists/oss-security/2024/07/10/6
http://www.openwall.com/lists/oss-security/2024/07/11/1
http://www.openwall.com/lists/oss-security/2024/07/11/3
https://access.redhat.com/errata/RHSA-2024:4312 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2024:4340
https://access.redhat.com/errata/RHSA-2024:4389
https://access.redhat.com/errata/RHSA-2024:4469
https://access.redhat.com/errata/RHSA-2024:4474
https://access.redhat.com/errata/RHSA-2024:4479
https://access.redhat.com/errata/RHSA-2024:4484
https://access.redhat.com/security/cve/CVE-2024-6387 Third Party Advisory 
https://archlinux.org/news/the-sshd-service-needs-to-be-restarted-after-upgrading-to-openssh-98p1/ Third Party Advisory 
https://arstechnica.com/security/2024/07/regresshion-vulnerability-in-openssh-gives-attackers-root-on-linux/ Press/Media Coverage  Third Party Advisory 
https://blog.qualys.com/vulnerabilities-threat-research/2024/07/01/regresshion-remote-unauthenticated-code-execution-vulnerability-in-openssh-server Exploit  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2294604 Issue Tracking 
https://explore.alas.aws.amazon.com/CVE-2024-6387.html Third Party Advisory 
https://forum.vmssoftware.com/viewtopic.php?f=8&t=9132
https://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2024-002.txt.asc Third Party Advisory 
https://github.com/AlmaLinux/updates/issues/629 Issue Tracking 
https://github.com/Azure/AKS/issues/4379 Issue Tracking 
https://github.com/PowerShell/Win32-OpenSSH/discussions/2248 Issue Tracking 
https://github.com/PowerShell/Win32-OpenSSH/issues/2249 Issue Tracking 
https://github.com/microsoft/azurelinux/issues/9555 Issue Tracking 
https://github.com/openela-main/openssh/commit/e1f438970e5a337a17070a637c1b9e19697cad09
https://github.com/oracle/oracle-linux/issues/149 Issue Tracking 
https://github.com/rapier1/hpn-ssh/issues/87 Issue Tracking 
https://github.com/zgzhang/cve-2024-6387-poc Third Party Advisory 
https://lists.almalinux.org/archives/list/announce@lists.almalinux.org/thread/23BF5BMGFVEVUI2WNVAGMLKT557EU7VY/
https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html Mailing List  Third Party Advisory 
https://lists.mindrot.org/pipermail/openssh-unix-dev/2024-July/041431.html Mailing List  Patch 
https://news.ycombinator.com/item?id=40843778 Issue Tracking  Patch 
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0010 Third Party Advisory 
https://security-tracker.debian.org/tracker/CVE-2024-6387 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20240701-0001/ Third Party Advisory 
https://sig-security.rocky.page/issues/CVE-2024-6387/ Third Party Advisory 
https://stackdiary.com/openssh-race-condition-in-sshd-allows-remote-code-execution/ Third Party Advisory 
https://ubuntu.com/security/CVE-2024-6387 Third Party Advisory 
https://ubuntu.com/security/notices/USN-6859-1 Third Party Advisory 
https://www.akamai.com/blog/security-research/2024-openssh-vulnerability-regression-what-to-know-and-do
https://www.arista.com/en/support/advisories-notices/security-advisory/19904-security-advisory-0100
https://www.freebsd.org/security/advisories/FreeBSD-SA-24:04.openssh.asc Third Party Advisory 
https://www.openssh.com/txt/release-9.8 Release Notes 
https://www.qualys.com/2024/07/01/cve-2024-6387/regresshion.txt Exploit  Third Party Advisory 
https://www.splunk.com/en_us/blog/security/cve-2024-6387-regresshion-vulnerability.html
https://www.suse.com/security/cve/CVE-2024-6387.html Third Party Advisory 
https://www.theregister.com/2024/07/01/regresshion_openssh/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  
CWE-364 Signal Handler Race Condition Red Hat, Inc.  

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Change History

41 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-6387
NVD Published Date:
07/01/2024
NVD Last Modified:
07/18/2024
Source:
Red Hat, Inc.