Affected: AlmaLinux:8: openssh, AlmaLinux:8: openssh-askpass, AlmaLinux:8: openssh-cavs, AlmaLinux:8: openssh-clients, AlmaLinux:8: openssh-keycat, AlmaLinux:8: openssh-ldap, AlmaLinux:8: openssh-server, AlmaLinux:8: pam_ssh_agent_auth

OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server.

Security Fix(es):

* openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables (CVE-2026-3497)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Withdrawn by the publisher.

Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.

Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.6 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant).

Siemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

Affected: openEuler:24.03-LTS-SP1: openssh, openEuler:24.03-LTS-SP2: openssh, openEuler:24.03-LTS-SP3: openssh, openEuler:20.03-LTS-SP4: openssh, openEuler:22.03-LTS-SP4: openssh, openEuler:24.03-LTS: openssh

An open source implementation of SSH protocol version 2 Security Fix(es):

Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.(CVE-2026-3497)

In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O (legacy scp protocol) and without -p (preserve mode).(CVE-2026-35385)

In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of…

openssh-10.3p1-6.1 on GA media

libxslt: Processing web content may disclose sensitive information nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables libarchive: Infinite Loop Denial of Service in RAR5 Decompression via archive_read_data() in libarchive libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing python: Python: Command-line option injection in webbrowser.open() via crafted URLs libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing net/url: Incorrect parsing of IPv6 host literals in net/url vim: Vim: Arbitrary code execution via 'helpfile' option processing nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file vim: Vim: Arbitrary code execution via OS command injection in the netrw plugin vim: Vim: Denial of service and information disclosure via crafted swap file nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files vim: Vim: Arbitrary code execution via command injection in glob() function

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.6 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant).

Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

Security update for openssh

Affected: Ubuntu:Pro:FIPS:16.04:LTS: openssh, Ubuntu:18.04:LTS: openssh-ssh1, Ubuntu:Pro:FIPS-updates:18.04:LTS: openssh, Ubuntu:Pro:FIPS:18.04:LTS: openssh, Ubuntu:Pro:20.04:LTS: openssh, Ubuntu:20.04:LTS: openssh-ssh1, Ubuntu:Pro:FIPS-updates:20.04:LTS: openssh, Ubuntu:Pro:FIPS:20.04:LTS: openssh, Ubuntu:22.04:LTS: openssh, Ubuntu:22.04:LTS: openssh-ssh1 and 8 more

Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSH GSSAPI und Ubuntu Linux ausnutzen, um ein undefiniertes Fehlverhalten oder einen potenziellen Denial-of-Service-Angriff auszulösen.