Huawei EulerOS: CVE-2024-6409: openssh security update

Huawei EulerOS: CVE-2024-6409: openssh security update

Severity

4

CVSS

(AV:L/AC:M/Au:N/C:P/I:P/A:P)

Published

07/08/2024

Created

10/10/2024

Added

10/09/2024

Modified

10/09/2024

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.

Solution(s)

• huawei-euleros-2_0_sp12-upgrade-openssh
• huawei-euleros-2_0_sp12-upgrade-openssh-clients
• huawei-euleros-2_0_sp12-upgrade-openssh-server

References

• https://attackerkb.com/topics/cve-2024-6409
• CVE - 2024-6409
• EulerOS-SA-2024-2536