In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() In __ceph_x_decrypt(), a part of the buffer p is interpreted as a ceph_x_encrypt_header, and the magic field of this struct is accessed. This happens without any guarantee that the buffer is large enough to hold this struct. The function parameter ciphertext_len represents the length of the ciphertext to decrypt and is guaranteed to be at most the remaining size of the allocated buffer p. However, this value is not necessarily greater than sizeof(ceph_x_encrypt_header). E.g., a message frame of type FRAME_TAG_AUTH_REPLY_MORE, that is just as long to hold the ciphertext at its end with a ciphertext_len of 8 or less, can trigger an out-of-bounds memory access when accessing hdr->magic. This patch fixes the issue by adding a check to ensure that the decrypted plaintext in the buffer is large enough to represent at least the ceph_x_encrypt_header.

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() In __ceph_x_decrypt(), a part of the buffer p is interpreted as a ceph_x_encrypt_header, and the magic field of this struct is accessed. This happens without any guarantee that the buffer is large enough to hold this struct. The function parameter ciphertext_len represents the length of the ciphertext to decrypt and is guaranteed to be at most the remaining size of the allocated buffer p. However, this value is not necessarily greater than sizeof(ceph_x_encrypt_header). E.g., a message frame of type FRAME_TAG_AUTH_REPLY_MORE, that is just as long to hold the ciphertext at its end with a ciphertext_len of 8 or less, can trigger an out-of-bounds memory access when accessing hdr->magic. This patch fixes the issue by adding a check to ensure that the decrypted plaintext in the buffer is large enough to represent at least the ceph_x_encrypt_header.

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() In __ceph_x_decrypt(), a part of the buffer p is interpreted as a ceph_x_encrypt_header, and the magic field of this struct is accessed. This happens without any guarantee that the buffer is large enough to hold this struct. The function parameter ciphertext_len represents the length of the ciphertext to decrypt and is guaranteed to be at most the remaining size of the allocated buffer p. However, this value is not necessarily greater than sizeof(ceph_x_encrypt_header). E.g., a message frame of type FRAME_TAG_AUTH_REPLY_MORE, that is just as long to hold the ciphertext at its end with a ciphertext_len of 8 or less, can trigger an out-of-bounds memory access when accessing hdr->magic. This patch fixes the issue by adding a check to ensure that the decrypted plaintext in the buffer is large enough to represent at least the ceph_x_encrypt_header.

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() In __ceph_x_decrypt(), a part of the buffer p is interpreted as a ceph_x_encrypt_header, and the magic field of this struct is accessed. This happens without any guarantee that the buffer is large enough to hold this struct. The function parameter ciphertext_len represents the length of the ciphertext to decrypt and is guaranteed to be at most the remaining size of the allocated buffer p. However, this value is not necessarily greater than sizeof(ceph_x_encrypt_header). E.g., a message frame of type FRAME_TAG_AUTH_REPLY_MORE, that is just as long to hold the ciphertext at its end with a ciphertext_len of 8 or less, can trigger an out-of-bounds memory access when accessing hdr->magic. This patch fixes the issue by adding a check to ensure that the decrypted plaintext in the buffer is large enough to represent at least the ceph_x_encrypt_header.

libceph: Fix potential out-of-bounds access in __ceph_x_decrypt()

In the Linux kernel, the following vulnerability has been resolved: l ...

Уязвимость функции __ceph_x_decrypt() модуля net/ceph/auth_x.c реализации сетевых функций ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Security update for the Linux Kernel (Live Patch 85 for SUSE Linux Enterprise 12 SP5)

Security update for the Linux Kernel (Live Patch 57 for SUSE Linux Enterprise 15 SP4)

Security update for the Linux Kernel (Live Patch 43 for SUSE Linux Enterprise 15 SP5)

Security update for the Linux Kernel (Live Patch 18 for SUSE Linux Enterprise 15 SP7)

Security update for the Linux Kernel (Live Patch 84 for SUSE Linux Enterprise 12 SP5)

Security update for the Linux Kernel (Live Patch 17 for SUSE Linux Enterprise 15 SP7)

Security update for the Linux Kernel (Live Patch 16 for SUSE Linux Enterprise 15 SP7)

Security update for the Linux Kernel (Live Patch 28 for SUSE Linux Enterprise 15 SP6)

Security update for the Linux Kernel (Live Patch 83 for SUSE Linux Enterprise 12 SP5)

Security update for the Linux Kernel (Live Patch 79 for SUSE Linux Enterprise 12 SP5)

Security update for the Linux Kernel (Live Patch 15 for SUSE Linux Enterprise 15 SP7)

Security update for the Linux Kernel (Live Patch 55 for SUSE Linux Enterprise 15 SP4)

Security update for the Linux Kernel (Live Patch 75 for SUSE Linux Enterprise 12 SP5)