ROS-20261013-73-0157

The vulnerability of the cephhandleauthreply function in the net/ceph/auth.c module, which is part of the networking functions in the Linux kernel, is related to incorrect checking of the type of input data. Exploiting this vulnerability could allow a malicious actor to cause service failures...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF and buffer leak in cifschecktrans2 for malformed secondary T2 CVE-2026-89637 In the Linux kernel, the following vulnerability has been resolved: ceph: bound copied dentry name length in NFS...

ROS-20261012-73-0011

The vulnerability of the cephmonmapdecode function in the net/ceph/monclient.c module, which implements networking functions for the Linux kernel, is related to integer overflow or cyclic shift vulnerabilities. Exploitation of this vulnerability could allow a remote attacker to cause a service...

Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-3183)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3183 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF and buffer leak in cifschecktrans2 for malformed secondary T2 CVE-2026-89637 In the Linux kernel, the...

Important: Red Hat Security Advisory: Red Hat Ceph Storage

A new version of Red Hat build of Ceph Storage has been released The Red Hat Storage Ceph container images are based on the latest ubi9 base image and Ceph 8.1. This release updates to the latest version...

Important: Red Hat Security Advisory: Red Hat Ceph Storage 8.1 security and bug fix updates

An update is now available for Red Hat Ceph Storage 8.1. Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services. These new packages...

ceph: ceph: RGW STS session tokens vulnerable to CBC bit-flip attack enabling admin privilege escalation

A flaw was found in Ceph RGW's STS Security Token Service session token implementation. The STS tokens use the same unauthenticated AES-128-CBC encryption as CephX, which lacks message authentication and uses a hardcoded initialization vector. Because there is no integrity protection on the token...

kernel: ceph: kernel: Ceph: exploit of hardcoded IVECs, in a misuse of AES, resulting in authentication bypass

A flaw was found in the CephX authentication protocol used by Ceph, a distributed storage system. CephX uses AES-128-CBC encryption with a hardcoded initialization vector and no message authentication HMAC, making it vulnerable to the same class of unauthenticated-encryption attacks that...

ceph: ceph: RGW SigV4 verifier allows attachment of arbitrary unsigned x-amz-* headers leading to privilege escalation

A flaw was found in Ceph RGW's SigV4 signature verification handler. When processing S3 requests, RGW verifies only the headers explicitly listed in the X-Amz-SignedHeaders field but does not reject requests that carry additional unsigned x-amz- headers. This diverges from the AWS S3 specificatio...

ceph: rhceph-container: Authentication bypass in CEPH RadosGW

A vulnerability in the Ceph Rados Gateway RadosGW OIDC provider allows attackers to bypass JWT signature verification by supplying a token with "none" as the algorithm alg. This occurs because the implementation fails to enforce strict signature validation, enabling attackers to forge valid token...

ceph: ceph: MON subscription handler exposes config-key store to low-privilege CephX users

A flaw was found in the MON subscription handler of Ceph, a distributed storage system. The handler does not properly authorize access to the config-key store when processing MMonSubscribe messages. Any CephX user holding mon allow r capabilities can read the entire config-key store, which contai...

Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 26.04 LTS : Ceph vulnerability (USN-8867-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8867-1 advisory. It was discovered that the Ceph Object Gateway RGW SigV4 handler did not reject requests carrying x-amz- headers that were...

Astra Linux – Vulnerability in Ceph

Ceph is a distributed object, block, and file storage platform. In versions 19.2.3 and earlier, it is possible to send a JWT with “none” as its JWT algorithm. By doing this, the JWT signature is not checked. The vulnerability lies most likely in the RadosGW OIDC provider. As of the time of...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the net/ceph/messengerv2.c file within the Linux kernel before version 6.4.5. There is an integer signedness error, which leads to a buffer overflow and remote code execution via the HELLO command or one of the AUTH frames. This occurs due to an untrusted length value...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: libceph: The calctarget function should set t-paused, rather than simply clearing it. Currently, calctarget clears t-paused if the request should no longer be paused. However, it never sets t-paused, even though it can determine...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ceph: Stopping functions that attempt paths longer than PATHMAX If the full path to be built by cephmdscbuildpath is longer than PATHMAX, this function will enter an endless loop, effectively blocking the entire task. Most of the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ceph: The reference to cephstring should be placed correctly after the asynccreate attempt. The reference obtained by tryprepasynccreate is currently being leaked. Ensure that we place this reference correctly...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ceph: A memory leak was fixed in cephreaddir when notelastdentry returns an error. lastreaddir was reset at the same time, and a comment was added explaining why lastreaddir is not freed when diremit returns false...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ceph: Fix for a possible deadlock when holding Fwb to get inlinedata 1. Mount with wsync. 2. Create a file with ORDWR, and the request is sent to mds.0: cephatomicopen -- cephmdscdorequestopenc finishopenfile, dentry, cephopen --...

Astra Linux – Vulnerability in Ceph

Ceph is a distributed object, block, and file storage platform. In versions up to and including 19.2.3, using the x-amz-copy-source argument to copy an object and specifying an empty string as its content resulted in the RGW daemon crashing, leading to a DoS attack. As of the time of publication,...