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

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Reserving space for inline xattr before attaching the reflink tree. One of our customers reported a crash and a corrupted ocfs2 filesystem. The crash was due to the detection of corruption. Upon troubleshooting, the fsck -...

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: openvswitch: The issue of unsafe attribute parsing in outputuserspace has been fixed. This patch replaces the manual Netlink attribute iteration in outputuserspace with nlaforeachnested, which ensures that only well-formed...

Astra Linux – Vulnerability in Linux 5.10, Linux

A use-after-free vulnerability was discovered in the Linux kernel’s ext4 file system, particularly regarding the handling of the additional inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: preventing dereferencing of ZEROSIZEPTR when numifs is zero The driver allocates arrays for ports, FDBs, and filter blocks using kcalloc, with ethsw-swattr.numifs as the element count. When the device reports zero...

Astra Linux – Vulnerability in lxml

A XSS vulnerability was discovered in the python-lxml’s clean module versions prior to 4.6.3. When the “safe attrsonly” and “forms” arguments are disabled, the Cleaner class does not remove the “formaction” attribute, allowing JavaScript to bypass the sanitizer. A remote attacker could exploit th...

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

In the Linux kernel, the following vulnerability has been resolved: f2fs: Explicitly terminate the xattr list with a null character. When setting an xattr, ensure that the xattr list is explicitly terminated with a null character. This eliminates the fragile assumption that the unused xattr space...

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

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: Fixed the sanity check on ixattrnid in sanitycheck inode. syzbot reports a kernel bug as follows: F2FS-fs loop0: Mounted with checkpoint version = 48b305e4 =========================================== Bugs: - KASAN:...

Astra Linux – Vulnerability in Linux 5.10, Linux

A out-of-bounds read vulnerability was discovered in the SR-IPv6 implementation within the Linux kernel. The flaw arises from the processing of seg6 attributes. The issue stems from the improper validation of user-provided data, which can lead to reading data beyond the bounds of an allocated...

Astra Linux – Vulnerability in Samba

A vulnerability was discovered in Samba, where the flaw allows SMB clients to truncate files, even with read-only permissions, when the Samba VFS module “aclxattr” is configured with “aclxattr:ignore system acls = yes”. The SMB protocol allows opening files when the client requests read-only...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: wwan: Fixed a global out-of-bounds read in wanrtnlpolicy. The variable wanrtnllinkops assigns a larger value to maxtype, leading to a global out-of-bounds read during the parsing of netlink attributes. This is exactly the...

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: nfs: Fixed the KMSAN warning in decodegetfattr attrs. Fixed the following KMSAN warnings: CPU: 1 UID: 0 PID: 7651 Comm: cp Tainted: G B Tainted: B=BADPAGE Hardware name: QEMU Standard PC Q35 + ICH9, 2009...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Initializing quotas for ‘old.inode’ in ‘ext4rename’. Syzbot identified the following issues: - ext4parseparam: swantextraisize=128 - ext4inodeinfoinit: swantextraisize=32 - ext4rename: old.inode=ffff88823869a2c8;...

Astra Linux – Vulnerability in cups

OpenPrinting CUPS is an open-source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and earlier, there was a heap-based buffer overflow in the CUPS scheduler when constructing filter option strings from job attributes. As of publication, there are no publicly...

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: bfs: Reconstructing the file type when loading from disk syzbot reports that the SIFMT bits of the inode-imode field can become invalid when: 1. The 32-bit “mode” field loaded from disk is corrupted; 2. The 32-bit “attributes”...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Corrected the incorrect validation of the next buffer length in smb2setea. There are multiple smb2eainfo buffers in the FILEFULLEAINFORMATION request from the client. ksmbd uses the NextEntryOffset of the current...

Astra Linux – Vulnerability in cups-filters

CUPS is a standards-based, open-source printing system. libcupsfilters contains the code for the filters from the former cups-filters package, which serve as library functions for tasks related to data format conversion in Printer Applications. The cfGetPrinterAttributes5 function in libcupsfilte...

Astra Linux – Vulnerability in cups

CUPS is a standards-based, open-source printing system, and libppd can be used for supporting legacy PPD files. The ppdCreatePPDFromIPP2 function in libppd does not sanitize IPP attributes when creating the PPD buffer. When used in conjunction with other functions such as cfGetPrinterAttributes5,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: jfs: fixed a slab-out-of-bounds read in eaget During the “sizecheck” step in eaget, the code checks whether the extended attribute list xattr size matches easize. If not, it logs “eaget: invalid extended attribute” and calls...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: hwmon: In the coretemp function, check if the parameter is null before removing it from the sysfsattrs structure. If an error occurs in coretempaddcore, pdata-coredataindx is already NULL and has been freed. Do not pass this valu...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: capabilities: Fixed a potential memory leak on the error path from vfsgetxattralloc. In capinodegetsecurity, we will use vfsgetxattralloc to complete the memory allocation of tmpbuf. If we have completed the memory allocation of...