Medium: amazon-cloudwatch-agent

Issue Overview: x509.Certificate.VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name SAN entries. This caused strings.Splithost, "." to execute repeatedly on the same input hostname. With a large DNS SAN list, verification costs scaled quadratically bas...

CVE-2026-48113

The CVE-2026-48113 entry concerns Chisel, a TCP/UDP tunnel over SSH, where ACL restrictions provided by --authfile are bypassed on post-handshake SSH channels. Authenticated clients can open channels to arbitrary host:port destinations reachable from the server because ACL checks are performed on...

PT-2026-61858

Name of the Vulnerable Software and Affected Versions libssh affected versions not specified Description A flaw exists where a remote authenticated peer can advertise a zero maximum packet size within the SSH MSG CHANNEL OPEN message. This causes subsequent channel writes to enter an infinite loo...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : Go Cryptography vulnerabilities (USN-8447-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8447-1 advisory. It was discovered that Go Cryptography did not properly handle SSH global request responses. ...

GO-2026-5054 Chisel has an ACL Bypass via Post-Handshake SSH Channel ExtraData Injection in github.com/jpillora/chisel

Chisel has an ACL Bypass via Post-Handshake SSH Channel ExtraData Injection in github.com/jpillora/chisel...

Chisel has an ACL Bypass via Post-Handshake SSH Channel ExtraData Injection

Summary Authenticated chisel clients can bypass --authfile ACL restrictions and tunnel traffic to arbitrary destinations reachable from the server. The ACL is enforced only during the initial handshake against declared remotes, but never on subsequent SSH channels that carry actual traffic. A...

GHSA-24FP-5V3P-RVPW Chisel has an ACL Bypass via Post-Handshake SSH Channel ExtraData Injection

Summary Authenticated chisel clients can bypass --authfile ACL restrictions and tunnel traffic to arbitrary destinations reachable from the server. The ACL is enforced only during the initial handshake against declared remotes, but never on subsequent SSH channels that carry actual traffic. A...

CVE-2026-39834

A flaw was found in golang.org/x/crypto/ssh. When a remote attacker attempts to write data larger than 4GB in a single call on an SSH Secure Shell channel, an integer overflow occurs in the internal payload size calculation. This vulnerability causes the write loop to spin indefinitely,...

SUSE CVE-2026-39834

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. The size comparison now uses int64 to prevent truncation...

CVE-2026-39834 Invoking infinite loop on large channel writes in golang.org/x/crypto/ssh

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. The size comparison now uses int64 to prevent truncation...

CVE-2026-39834 Invoking infinite loop on large channel writes in golang.org/x/crypto/ssh

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. The size comparison now uses int64 to prevent truncation...

CVE-2026-39834

CVE-2026-39834 concerns a flaw in golang.org/x/crypto/ssh where writing data larger than 4GB in a single Write on an SSH channel triggers an integer overflow in the internal payload size calculation. The overflow causes the write loop to spin indefinitely, sending empty packets and making no prog...

PT-2026-42713

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description An integer overflow occurs during the internal payload size calculation when writing data exceeding 4GB in a single Write call on an SSH channel. This leads to a...

MGASA-2026-0066 Updated trilead-ssh2 packages fix security vulnerabilities

CVE-2023-48795: Fixed prefix truncation breaking ssh channel integrity aka Terrapin Attack...

Updated trilead-ssh2 packages fix security vulnerabilities

CVE-2023-48795: Fixed prefix truncation breaking ssh channel integrity aka Terrapin Attack...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2019-3857)

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSHMSGCHANNELREQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects t...

TencentOS Server 3: libssh (TSSA-2024:0056)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:0056 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

ssh: Prefix truncation attack on Binary Packet Protocol (BPP)

A flaw was found in the SSH channel integrity. By manipulating sequence numbers during the handshake, an attacker can remove the initial messages on the secure channel without causing a MAC failure. For example, an attacker could disable the ping extension and thus disable the new countermeasure ...

ssh: Prefix truncation attack on Binary Packet Protocol (BPP)

A flaw was found in the SSH channel integrity. By manipulating sequence numbers during the handshake, an attacker can remove the initial messages on the secure channel without causing a MAC failure. For example, an attacker could disable the ping extension and thus disable the new countermeasure ...

SUSE-SU-2024:0974-1 Security update for jsch-agent-proxy

This update for jsch-agent-proxy fixes the following issues: - CVE-2023-48795: Fixed prefix truncation breaking ssh channel integrity aka Terrapin Attack bsc1218198...