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CVE-2025-4953

Podman: build context bind mount

A flaw was found in Podman. In a Containerfile or Podman, data written to RUN --mount=type=bind mounts during the podman build is not discarded. This issue can lead to files created within the container appearing in the temporary build context directory on the host, leaving the created files accessible.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift
CVE-2025-26466

Openssh: denial-of-service in openssh

A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.

CVSS 3.1 · 5.9 Medium EPSS 38.7% KEV · Not listed
Vendors
Canonical Debian Openbsd and 1 more
Products
Ubuntu Linux Debian Linux Openssh and 3 more
CVE-2025-26465

Openssh: machine-in-the-middle attack if verifyhostkeydns is enabled

A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high.

CVSS 3.1 · 6.8 Medium EPSS 7.7% KEV · Not listed
Vendors
Debian Netapp Openbsd and 1 more
Products
Debian Linux Active Iq Unified Manager Ontap and 7 more
CVE-2025-0620

Samba: smbd doesn't pick up group membership changes when re-authenticating an expired smb session

A flaw was found in Samba. The smbd service daemon does not pick up group membership changes when re-authenticating an expired SMB session. This issue can expose file shares until clients disconnect and then connect again.

CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat Samba
Products
Enterprise Linux Openshift Rhel Els and 1 more
CVE-2025-11568

Luksmeta: data corruption when handling luks1 partitions with luksmeta

A data corruption vulnerability has been identified in the luksmeta utility when used with the LUKS1 disk encryption format. An attacker with the necessary permissions can exploit this flaw by writing a large amount of metadata to an encrypted device. The utility fails to correctly validate the available space, causing the metadata to overwrite and corrupt the user's encrypted data. This action leads to a permanent loss of the stored information. Devices using the LUKS formats other than LUKS1 are not affected by this issue.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Els
CVE-2025-11234

Qemu-kvm: vnc websocket handshake use-after-free

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Aus and 5 more
CVE-2025-11065

Github.com/go-viper/mapstructure/v2: go-viper's mapstructure may leak sensitive information in logs in github.com/go-viper/mapstructure

A flaw was found in github.com/go-viper/mapstructure/v2, in the field processing component using mapstructure.WeakDecode. This vulnerability allows information disclosure through detailed error messages that may leak sensitive input values via malformed user-supplied data processed in security-critical contexts.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Acm Advanced Cluster Security Certifications and 10 more
CVE-2025-10911

Libxslt: use-after-free with key data stored cross-rvt

A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Discovery Enterprise Linux Enterprise Linux Eus and 10 more
CVE-2025-1118

Grub2: commands/dump: the dump command is not in lockdown when secure boot is enabled

A flaw was found in grub2. Grub's dump command is not blocked when grub is in lockdown mode, which allows the user to read any memory information, and an attacker may leverage this in order to extract signatures, salts, and other sensitive information from the memory.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Els
CVE-2025-1125

Grub2: fs/hfs: integer overflow may lead to heap based out-of-bounds write

When reading data from a hfs filesystem, grub's hfs filesystem module uses user-controlled parameters from the filesystem metadata to calculate the internal buffers size, however it misses to properly check for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size calculation to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result the hfsplus_open_compressed_real() function will write past of the internal buffer length. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution by-passing secure boot protections.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Grub2 Enterprise Linux Openshift and 1 more
CVE-2025-0690

Grub2: read: integer overflow may lead to out-of-bounds write

The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub's internal critical data and secure boot bypass is not discarded as consequence.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Els
CVE-2025-0686

Grub2: romfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading dat

A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_romfs_read_symlink() may cause out-of-bounds writes when the calling grub_disk_read() function. This issue may be leveraged to corrupt grub's internal critical data and can result in arbitrary code execution by-passing secure boot protections.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Grub2 Enterprise Linux Openshift and 1 more
CVE-2025-0689

Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution

When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Grub2 Enterprise Linux Openshift and 1 more
CVE-2025-0685

Grub2: jfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data

A flaw was found in grub2. When reading data from a jfs filesystem, grub's jfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_jfs_lookup_symlink() function will write past the internal buffer length during grub_jfs_read_file(). This issue can be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Grub2 Enterprise Linux Openshift and 1 more
CVE-2025-0684

Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data

A flaw was found in grub2. When performing a symlink lookup from a reiserfs filesystem, grub's reiserfs fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_reiserfs_read_symlink() will call grub_reiserfs_read_real() with a overflown length parameter, leading to a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and can result in arbitrary code execution, by-passing secure boot protections.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Grub2 Enterprise Linux Openshift and 1 more
CVE-2025-0678

Grub2: squash4: integer overflow may lead to heap based out-of-bounds write when reading data

A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the direct_read() will perform a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Grub2 Enterprise Linux Openshift and 2 more
CVE-2025-0677

Grub2: ufs: integer overflow may lead to heap based out-of-bounds write when handling symlinks

A flaw was found in grub2. When performing a symlink lookup, the grub's UFS module checks the inode's data size to allocate the internal buffer to read the file content, however, it fails to check if the symlink data size has overflown. When this occurs, grub_malloc() may be called with a smaller value than needed. When further reading the data from the disk into the buffer, the grub_ufs_lookup_symlink() function will write past the end of the allocated size. An attack can leverage this by crafting a malicious filesystem, and as a result, it will corrupt data stored in the heap, allowing for arbitrary code execution used to by-pass secure boot mechanisms.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Els
CVE-2025-0622

Grub2: command/gpg: use-after-free due to hooks not being removed on module unload

A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If correctly exploited, this vulnerability may result in arbitrary code execution, eventually allowing the attacker to bypass secure boot protections.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Els
CVE-2024-9676

Podman: buildah: cri-o: symlink traversal vulnerability in the containers/storage library can cause denial of service (dos)

A vulnerability was found in Podman, Buildah, and CRI-O. A symlink traversal vulnerability in the containers/storage library can cause Podman, Buildah, and CRI-O to hang and result in a denial of service via OOM kill when running a malicious image using an automatically assigned user namespace (`--userns=auto` in Podman and Buildah). The containers/storage library will read /etc/passwd inside the container, but does not properly validate if that file is a symlink, which can be used to cause the library to read an arbitrary file on the host.

CVSS 3.1 · 6.5 Medium EPSS 1.3% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Enterprise Linux Eus Enterprise Linux For Arm 64 and 17 more
CVE-2024-9407

Buildah: podman: improper input validation in bind-propagation option of dockerfile run --mount instruction

A vulnerability exists in the bind-propagation option of the Dockerfile RUN --mount instruction. The system does not properly validate the input passed to this option, allowing users to pass arbitrary parameters to the mount instruction. This issue can be exploited to mount sensitive directories from the host into a container during the build process and, in some cases, modify the contents of those mounted files. Even if SELinux is used, this vulnerability can bypass its protection by allowing the source directory to be relabeled to give the container access to host files.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Eus