CVE-2025-32433

CVE-2025-32433 – Erlang/OTP SSH RCE 脆弱性 📌 概要 CVE-2025-32433 は、Erlang/OTP SSH デーモンに影響を与える リモートコード実行 RCE 脆弱性です。 根本的な原因は、認証前の SSH チャネルリクエストの不適切な処理にあり、攻撃者がこれを細工することで、 認証前に 任意のコマンド実行を引き起こす可能性があります。 添付の PoC は、このような細工された SSH パケットを送信することを示しています。デフォルトではターゲット上に /lab.txt を作成しますが、他のコマンドに応用可能です。 ⚠️ 免責事項:...

CLEANSTART-2026-OL23592 When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty pa...

CVE-2026-39834 affects multiple packages. When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. See references for individu...

CLEANSTART-2026-AG86727 When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty pa...

CVE-2026-39834 affects multiple packages. When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. See references for individu...

CLEANSTART-2026-MV50731 When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty pa...

Security vulnerability affects the consul package. When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress...

CLEANSTART-2026-AI26012 When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty pa...

Security vulnerability affects the kube-state-metrics-fips package. When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress...

CLEANSTART-2026-UG93832 When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty pa...

Security vulnerability affects the containerd package. When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress...

CLEANSTART-2026-UN89941 When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty pa...

Security vulnerability affects the loki package. When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress...

Security update for gh (important)

openSUSE Security Update: Security update for gh Announcement ID: openSUSE-SU-2026:0333-1 Rating: important References: 1278604 Cross-References: CVE-2026-56854 CVE-2026-56855 CVE-2026-78662 CVSS scores: CVE-2026-56854 SUSE: 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N...

openSUSE 16 Security Update : gh (openSUSE-SU-2026:21861-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21861-1 advisory. Changes in gh: Update to version 2.100.0, fixing two deadlock issues in the vendored golang.org/x/crypto/ssh library reachable via crafted SSH...

Security update for gh (important)

openSUSE security update: security update for gh ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21861-1 Rating: important References: bsc1278604 Cross-References: CVE-2026-56854 CVE-2026-56855 CVE-2026-78662 CVSS scores: CVE-2026-56854 SUSE : 8.1...

OPENSUSE-SU-2026:21861-1 Security update for gh

This update for gh fixes the following issues: Changes in gh: Update to version 2.100.0, fixing two deadlock issues in the vendored golang.org/x/crypto/ssh library reachable via crafted SSH channel messages CVE-2026-56854, CVE-2026-56855, CVE-2026-78662, bsc1278604: Fix gh api telemetry disableme...

CVE-2026-56855

A flaw was found in golang.org/x/crypto/ssh. After a channel has been established, a remote malicious peer could send specially crafted messages. This could lead to a deadlock of the entire connection, resulting in a Denial of Service DoS for the affected system. Mitigation Red Hat is not aware o...

AZL-99282 CVE-2026-56855 affecting package moby-engine 25.0.3-20

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 tear the connectio...

AZL-99210 CVE-2026-56855 affecting package docker-compose for versions less than 2.27.0-14

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 tear the connectio...

AZL-99198 CVE-2026-56855 affecting package docker-buildx for versions less than 0.14.0-17

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 tear the connectio...

AZL-99255 CVE-2026-56855 affecting package kubernetes for versions less than 1.30.10-30

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 tear the connectio...

AZL-99159 CVE-2026-56855 affecting package cert-manager for versions less than 1.12.15-14

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 tear the connectio...

AZL-99318 CVE-2026-56855 affecting package packer for versions less than 1.9.5-21

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 tear the connectio...

CVE-2026-56855 Prevent DoS on deadlocked established channel in golang.org/x/crypto/ssh

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 tear the connectio...

Allocation of Resources Without Limits or Throttling

Overview golang.org/x/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in its connection multiplexing, reached through Dial, NewClientConn, NewControlClientConn, and NewServerConn, which buffers unhandle...