Astra Linux - уязвимость в u-boot

A issue was discovered in Das U-Boot during the period from 2019.07. There is an unbounded memcpy operation with a failed length check at nfsreadreply, when calling storeblock in the NFSv2 case...

Astra Linux - уязвимость в u-boot

A issue was discovered in Das U-Boot during the period from 2019.07. There is a stack-based buffer overflow in the nfshandler reply helper function: nfsumountallreply...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSD: Protection against send buffer overflow in NFSv2 READ Since the time before the advent of Git, NFSD has managed the number of pages held by each nfsd thread by combining the RPC receive and send buffers into a single array ...

Astra Linux – Vulnerability in Wireshark

A memory leak occurs in the NFS dissector in Wireshark versions 4.0.0 to 4.0.2, and 3.6.0 to 3.6.10. This issue may lead to denial of service through packet injection or with specially crafted capture files...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fixed the behavior of the READ operation near OFFSETMAX. Dan Aloni reports: Due to commit 8cfb9015280d “NFS: Always provide aligned buffers to RPC read layers” on the client, a read of 0xfff is aligned up to the server’s...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFS: Fixed a potential NULL dereference in nfsgetclient. None of the callers is expected to receive a NULL return value from nfsgetclient. Therefore, this code will result in an Oops error. It’s better to return an error pointer....

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Do not hold the layoutget locks across multiple RPC calls When performing layoutget as part of the open compound, we must be careful to release the layout locks before calling any further RPC calls, such as setattr. The...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: NFSv4: Fixed an error in pnfsmarkrequestcommit, when performing ODIRECT operations. Fixed an error-prone condition in pnfsmarkrequestcommit, when adding a set of write operations to the commit list in order to reschedule them...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: nfs4: Fixed a memory leak when allocating slots failed. If one of the slot allocations fails, all other allocated slots should be cleaned up. Otherwise, the allocated slots will cause a leak: - Unreferenced object...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Fixed the handling of cached open files in the nfsd4open code path. The commit fb70bf124b05 “NFSD: Instantiate a struct file when creating a regular NFSv4 file” added the ability to cache an open file descriptor across...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSD: The encoder for NFSv2 GETACL results has been completed. The xdrstream conversion inadvertently left some code that set the pagelen of the send buffer. The XDR stream encoders should now handle this automatically. This...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: Rework the handling of scratch space for READPLUS again. I found that the read code might send multiple requests using the same nfspgioheader. However, the nfs4procreadsetup function is only called once. As a result, we...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nfs: fixed a panic that occurred when nfs4fflayoutprepareds failed. We have observed the following panics in production: BUG: NULL pointer dereferencing in the kernel, address: 0000000000000065 PGD: 2f485f067; P4D: 2f485f067;...

Astra Linux – Vulnerability in Samba

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client that can exploit the race condition of SMB1 or NFS to create a directory in an area of the server file system that is not exported under the share definition. Note that SMB1 must be enabled, or the share must also be...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cifs: Prevent NULL dereferencing in cifscomposemountoptions. The optional @ref parameter may contain a NULL nodename. Therefore, prevent dereferencing it in cifscomposemountoptions. Addresses-Coverity: 1476408 “Explicit NULL...

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

In the Linux kernel, the following vulnerabilities have been resolved: cifs: Fixed a UAF in cifsdemultiplexthread There is a UAF when performing xfstests on cifs: BUG: KASAN: Use-after-free in smb2isnetworknamedeleted+0x27/0x160 Reading a size 4 value at address ffff88810103fc08 by task cifsd/923...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC with ops-opnum == OPILLEGAL OPDESC simply indexes into nfsd4ops based on the operation number, without any range checking of that value. It assumes that callers will be careful enough to avoid calling...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: macb: Shuffle the tx ring before enabling tx Quanyang observed that when using an NFS rootfs on an AMD ZynqMp board, the rootfs may take an extended time to recover after a suspend. Upon investigation, it was determined that...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfs: Only call foliostartfscache once for each folio. If a network filesystem using netfs implements a clamplength function, it can set subrequest lengths that are smaller than the page size. When we loop through the folios in...

Astra Linux - уязвимость в u-boot

A issue was discovered in Das U-Boot during the period from 2019.07. There is an unbounded memcpy operation with a failed length check at nfsreadreply, when calling storeblock in the NFSv3 case...