Medium: amazon-ssm-agent

Issue Overview: Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and te...

Medium: amazon-ssm-agent

Issue Overview: Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and te...

Amazon Linux 2023 : amazon-ssm-agent (ALAS2023-2026-3160)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3160 advisory. Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global...

Amazon Linux 2 : amazon-ssm-agent (ALAS-2026-3969)

The version of amazon-ssm-agent installed on the remote host is prior to 3.3.5390.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3969 advisory. Previously, after a channel has been established, a malicious peer could send crafted messages that would...

Critical: amazon-ssm-agent

Issue Overview: Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello. CVE-2026-42505 go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2...

Amazon Linux 2 : amazon-ssm-agent (ALAS-2026-3963)

The version of amazon-ssm-agent installed on the remote host is prior to 3.3.5226.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3963 advisory. Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a...

Critical: amazon-ssm-agent

Issue Overview: Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello. CVE-2026-42505 go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2...

Amazon Linux 2023 : amazon-ssm-agent (ALAS2023-2026-3149)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3149 advisory. Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello. CVE-2026-425...

Amazon Linux 2 : amazon-ssm-agent (ALAS-2026-3933)

The version of amazon-ssm-agent installed on the remote host is prior to 3.3.5226.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3933 advisory. Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a...

Important: amazon-ssm-agent

Issue Overview: Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello. CVE-2026-42505 go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2...

Security update for amazon-ssm-agent

This update for amazon-ssm-agent fixes the following issue: CVE-2026-56854: golang.org/x/crypto/ssh: source-address restriction bypassed in 5 callback families bsc1278681 CVE-2026-56855: golang.org/x/crypto/ssh: prevent DoS on deadlocked established channel bsc1278681 CVE-2026-78662:...

SUSE-SU-2026:4372-1 Security update for amazon-ssm-agent

This update for amazon-ssm-agent fixes the following issue: - CVE-2026-56854: golang.org/x/crypto/ssh: source-address restriction bypassed in 5 callback families bsc1278681 - CVE-2026-56855: golang.org/x/crypto/ssh: prevent DoS on deadlocked established channel bsc1278681 - CVE-2026-78662:...

Important: amazon-ssm-agent

Issue Overview: Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello. CVE-2026-42505 go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2...

openSUSE 16 Security Update : amazon-ssm-agent (openSUSE-SU-2026:21884-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21884-1 advisory. - CVE-2026-56854,CVE-2026-56855,CVE-2026-78662: golang.org/x/crypto/ssh: authentication bypass and deadlocks in the crypto/ssh library bsc127868...

Security update for amazon-ssm-agent (important)

openSUSE security update: security update for amazon-ssm-agent ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21884-1 Rating: important References: bsc1276981 bsc1276994 bsc1278681 Cross-References: CVE-2026-56854 CVE-2026-56855 CVE-2026-71556...

SUSE SLES12 Security Update : amazon-ssm-agent (SUSE-SU-2026:4286-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4286-1 advisory. - CVE-2026-56854: golang.org/x/crypto/ssh: source-address restriction bypassed in 5 callback families bsc1278681 - CVE-2026-56855:...

Security update for amazon-ssm-agent

This update for amazon-ssm-agent fixes the following issues: CVE-2026-56854: golang.org/x/crypto/ssh: source-address restriction bypassed in 5 callback families bsc1278681 CVE-2026-56855: golang.org/x/crypto/ssh: prevent DoS on deadlocked established channel bsc1278681 CVE-2026-78662:...

SUSE-SU-2026:4286-1 Security update for amazon-ssm-agent

This update for amazon-ssm-agent fixes the following issues: - CVE-2026-56854: golang.org/x/crypto/ssh: source-address restriction bypassed in 5 callback families bsc1278681 - CVE-2026-56855: golang.org/x/crypto/ssh: prevent DoS on deadlocked established channel bsc1278681 - CVE-2026-78662:...

SUSE SLES15 Security Update : amazon-ssm-agent (SUSE-SU-2026:4082-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4082-1 advisory. - CVE-2026-71556: github.com/go-git/go-git/v5: Arbitrary file read/write via symbolic link resolution bsc1276981. - CVE-2026-71557:...

OPENSUSE-SU-2026:21884-1 Security update for amazon-ssm-agent

This update for amazon-ssm-agent fixes the following issues: - CVE-2026-56854,CVE-2026-56855,CVE-2026-78662: golang.org/x/crypto/ssh: authentication bypass and deadlocks in the crypto/ssh library bsc1278681. - CVE-2026-71556: github.com/go-git/go-git/v5: arbitrary file read/write via symbolic lin...