Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: VMCI: Check context-notifypage after calling getuserpagesfast to avoid GPF. The call to getuserpagesfast in vmcihostunlockedioctl may return NULL for context-notifypage, causing a GPF. To avoid this, check that context-notifypage...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: “aoe”: avoided potential deadlock at setcapacity. setcapacity has been moved outside of the section handled by &d-lock. This prevents possible unsafe locking scenarios due to interrupts. Here’s the sequence of events: 1...

Astra Linux – Vulnerability in Ansible

A flaw was discovered in Ansible Engine 2.9.18, where sensitive information is not masked by default, and the nolog feature is not protected when using the sub-option feature of the basic.py module. This flaw allows an attacker to obtain sensitive information. The greatest threat posed by this...

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

In the Linux kernel, the following vulnerabilities have been resolved: openvswitch: Use RCU protection in ovsvportcmdfillinfo. ovsvportcmdfillinfo can be called without RTNL or RCU. Use RCU protection and devnetrcu to avoid potential UAF Use-After-Free errors...

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

In the Linux kernel, the following vulnerabilities have been resolved: ndisc: Extended RCU protection has been added to ndiscsendskb. The ndiscsendskb function can be called without holding RTNL or RCU. The rcureadlock function must be acquired earlier, so that we can use devnetrcu, and potential...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dm: Do not attempt to queue IO under RCU protection dm looks up the table for IO based on the request type. It assumes that if the request is marked as REQNOWAIT, it’s safe to attempt to submit that IO while under the RCU read lo...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fixed a general protection fault in nilfsbtreeinsert If nilfs2 reads a corrupted disk image and attempts to read a b-tree node by calling nilfsbtreegetblock against an invalid virtual block address, it returns -ENOENT...

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

In the Linux kernel, the following vulnerability has been resolved: drm/client: The modes array contains pointers to modes in the connector’s mode lists, which are protected by dev-modeconfig.mutex. Therefore, we need to extend the protection for modes at the same time; otherwise, by the time we...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: arm64: The issue was fixed in the concurrently setting of insnemulation sysctls. The emulationprochandler function changes table-data for procdointvecminmax. However, it may cause an OOPs error if called concurrently with itself:...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba’s vfsworm module. This module is designed to provide Write-Once, Read-Many WORM protections by preventing files from being modified after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to...

Astra Linux – Vulnerability in krb5

A vulnerability in the MIT Kerberos implementation allows for GSSAPI-protected messages that use RC4-HMAC-MD5 to be spoofed, due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption methods, an attacker could exploit MD5 collisions to forge message integrity code...

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: net/smc: The use of smclgrlist.lock is required to protect the iteration of smclgrlist.list during smcrportadd. During the execution of smcrportadd, there may be operations that add or delete entries from smclgrlist.list at the...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerability has been resolved: vmcihost: A race condition in vmcihostpoll caused by a General Protection Fault GPF has been fixed. During fuzzing, a General Protection Fault was observed in vmcihostpoll. The General Protection Fault occurred, likely due to...

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

In the Linux kernel, the following vulnerabilities have been resolved: vsock: Fixed the transport TOCTOU issue. The transport assignment may race with module unloading. This issue is addressed by protecting newtransport from becoming a stale pointer. This also includes fixing an insecure call in...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: macvlan: fixed a possible Use-after-Allocation UAF in macvlanforwardsource. Added RCU protection for the vlan field in struct macvlansourceentry. Whenever macvlanhashdelsource is called, we must clear the entry-vlan pointer befor...

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: ext4: Added idatasem protection in ext4destroyInlinedatanolock Fixed a race condition between inline data destruction and block mapping. The function ext4destroyInlinedatanolock changes the inode data layout by clearing...

Astra Linux – Vulnerability in amd64-microcode

IOMMU improperly handles certain special address ranges with invalid device table entries DTEs. This may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially resulting in a loss of guest integrity...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciuart: added a missing NULL check in h5enqueue. Syzbot encountered a general protection fault in pmruntimeresume. The problem was due to a missing NULL check. hu-serdev can be NULL, and we should not blindly pass...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: char: tpm: Protect tpmpmsuspend with locks Currently, tpm transactions are executed unconditionally in the tpmpmsuspend function, which may lead to races with other tpm accessors in the system. Specifically, the hwrandom tpm driv...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nilfs2: A potential UAF Use-After-Free error in struct nilfsscinfo can be prevented in nilfssegctorthread. The finalization of nilfssegctorthread may race with nilfssegctorkillthread, which terminates that thread. This could...