Astra Linux – Vulnerability in SQLite3

Before version 3.32.0, SQLite allowed a virtual table to be renamed to the name of one of its shadow tables, which are related to alter.c and build.c...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: x86: Shadow stacks – proper error handling for mmap lock Kim Young-min reported that shstkpopsigframe does not check for errors from mmapreadlockkillable. This is a silly oversight. It was also shown that we have not marked...

Astra Linux – Vulnerability in Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: fix race condition during shadow creation Currently, it is possible to encounter a crash when kvms390vsiegmapnotifier is called, with gmap-private being set to zero. This issue arises because we add gmap-private ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/scs: The task stack state is reset in bringupcpu. When a CPU is hot-plugged, the idle task on that CPU calls several layers of C code before finally leaving the kernel. When KASAN is in use, “poisoned” shadow is retained fo...

Astra Linux – Vulnerability in Linux

The arch/x86/kvm/mmu/pagingtmpl.h file in the Linux kernel before version 5.12.11 incorrectly calculates the access permissions of a shadow page, resulting in a missing guest protection page fault...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Immediately reset the MMU context when the SMM flag is cleared The MMU context must be reset immediately when the SMM flag of the vCPU is cleared, so that the SMM flag in the MMU context is always synchronized with the...

Astra Linux – Vulnerability in Linux 5.10, Linux

With shadow paging enabled, the INVPCID instruction results in a call to kvmmmuinvpcidgva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set, and the result is a NULL pointer dereference...

Astra Linux – Vulnerability in sudo

In Sudo version 1.8.29, the fact that a user has been blocked for example, by using the “!” character in the shadow file instead of a password hash is not taken into consideration. This allows an attacker who has access to a Runas ALL sudoer account to impersonate any blocked user. NOTE: The...

Astra Linux – Vulnerability in Shadow

Shadow: TOCTOU time-of-check time-of-use race condition when copying and removing directory trees...

Astra Linux – Vulnerability in Shadow

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly for example, adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file...

Astra Linux – Vulnerability in Shadow

A flaw was discovered in shadow-utils. When requesting a new password, shadow-utils asks for the password twice. If the password is incorrect on the second attempt, shadow-utils fails in clearing the buffer used to store the first entry. This may allow an attacker with sufficient access to retrie...

Astra Linux – Vulnerability in Shadow

A vulnerability was discovered in Shadow 4.5. The newgidmap function part of shadow-utils is setuid, allowing an unprivileged user to be placed in a user namespace where setgroups2 is allowed. This enables an attacker to remove themselves from a supplementary group, potentially granting them acce...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RISCV: Fixed a race condition when vmap stack overflow occurs. Currently, when detecting vmap stack overflow, RISCV first switches to the so-called shadow stack, and then uses this shadow stack to call getoverflowstack, in order ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only warnings are issued when overwriting a shadow-present SPTE, specifically when the operation is performed on direct MMUs. This adjustment applies only to MMUs that do not have shadowed gPTEs. Although it’s...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: The existing SPTE is dropped/zapped even when creating an MMIO SPTE. When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it’s shadow-present. While the commit a54aa15c6bda3 was...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mm: cachestat: fixed two shmem bugs When cachestat on shmem overlaps with swapping and invalidation, there are two possible bugs: 1 A swapin error may result in a corrupted swap entry in the shmem inode’s xarray. Calling...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dmbtreeremove: Assign newroot only when the removal succeeds. The removeraw function in dmbtreeremove may fail due to IO read errors e.g., failure to read the content of the origin block during shadowing. Additionally, the value ...

kernel: Read root-owned files as an unprivileged user

A vulnerability was found in the Linux kernel that allows an unprivileged local user to read sensitive files normally restricted to the root user. The flaw occurs during process exit, where a brief window allows an attacker to intercept file access from a privileged process before it fully...

kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

PT-2026-42247

Name of the Vulnerable Software and Affected Versions MISP versions prior to 2.5.38 Description An issue exists in the ShadowAttribute proposal creation workflow where the add action accepts user-controlled request data without removing the id field before saving the record. Since the underlying...