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 a…
High CVSS 8.1
Summary
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.
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
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Sources
- NVD DATABASE
Original Links
- https://access.redhat.com/errata/RHSA-2024:4312 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4340 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4389 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4469 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4474 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4479 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4484 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2024-6387 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2294604 Third Party Advisory
- https://santandersecurityresearch.github.io/blog/sshing_the_masses.html Exploit
- https://www.openssh.com/txt/release-9.8 Release Notes
- https://www.qualys.com/2024/07/01/cve-2024-6387/regresshion.txt Exploit
- http://seclists.org/fulldisclosure/2024/Jul/18 Mailing List
- http://seclists.org/fulldisclosure/2024/Jul/19 Mailing List
- http://seclists.org/fulldisclosure/2024/Jul/20 Mailing List
- 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 Exploit
- 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 Exploit
- http://www.openwall.com/lists/oss-security/2024/07/08/2 Exploit
- http://www.openwall.com/lists/oss-security/2024/07/08/3 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/09/2 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/09/5 Exploit
- http://www.openwall.com/lists/oss-security/2024/07/10/1 Exploit
- http://www.openwall.com/lists/oss-security/2024/07/10/2 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/10/3 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/10/4 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/10/6 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/11/1 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/11/3 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/23/4 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/23/6 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/28/2 Mailing List
- http://www.openwall.com/lists/oss-security/2024/07/28/3 Mailing List
- https://access.redhat.com/errata/RHSA-2024:4312 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4340 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4389 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4469 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4474 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4479 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:4484 Third Party Advisory
- 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
- https://blog.qualys.com/vulnerabilities-threat-research/2024/07/01/regresshion-remote-unauthenticated-code-execution-vulnerability-in-openssh-server Press/Media Coverage
- https://bugzilla.redhat.com/show_bug.cgi?id=2294604 Third Party Advisory
- https://explore.alas.aws.amazon.com/CVE-2024-6387.html Third Party Advisory
- https://forum.vmssoftware.com/viewtopic.php?f=8&t=9132 Issue Tracking
- https://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2024-002.txt.asc Release Notes
- 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 Patch
- 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/ Third Party Advisory
- https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html Mailing List
- https://lists.mindrot.org/pipermail/openssh-unix-dev/2024-July/041431.html Mailing List
- https://news.ycombinator.com/item?id=40843778 Issue Tracking
- https://packetstorm.news/files/id/190587/ Broken Link
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0010 Third Party Advisory
- https://santandersecurityresearch.github.io/blog/sshing_the_masses.html Exploit
- 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/ Press/Media Coverage
- https://support.apple.com/kb/HT214118 Third Party Advisory
- https://support.apple.com/kb/HT214119 Third Party Advisory
- https://support.apple.com/kb/HT214120 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 Third Party Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisory/19904-security-advisory-0100 Third Party Advisory
- https://www.exploit-db.com/exploits/52269 Exploit
- 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
- https://www.splunk.com/en_us/blog/security/cve-2024-6387-regresshion-vulnerability.html Third Party Advisory
- https://www.suse.com/security/cve/CVE-2024-6387.html Third Party Advisory
- https://www.theregister.com/2024/07/01/regresshion_openssh/ Press/Media Coverage
- https://www.vicarius.io/vsociety/posts/regresshion-an-openssh-regression-error-cve-2024-6387 Exploit
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-446545.html
Timeline
- nvd_ingest NVD