Windows Secure Kernel Mode Elevation of Privilege Vulnerability

Double free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw arises because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local privileges escalation on systems where the X server is running with privileged access, and may...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: restricted usage in unprivileged domU The Xen privcmd driver allows for the issuance of arbitrary hypercalls from user space processes. This is normally not a problem, as access is usually limited to root, and the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/sgx: Resolved the race condition between SECS reclaiming and page fault for EAUG. The SGX EPC reclaimer ksgxd may reclaim the SECS EPC page for an enclave and set secs.epcpage to NULL. The SECS page is used for EAUG and ELDU ...

Astra Linux – Vulnerability in Tomcat9

When using RemoteIpFilter with requests received from a reverse proxy via HTTP that includes the X-Forwarded-Proto header set to https, session cookies created by Apache Tomcat 11.0.0-M1 to 11.0.0.-M2, 10.1.0-M1 to 10.1.5, 9.0.0-M1 to 9.0.71, and 8.5.0 to 8.5.85 did not include the secure...

Astra Linux – Vulnerability in Erlang

In Erlang/OTP versions prior to 23.3.4.15, 24.x before 24.3.4.2, and 25.x before 25.0.2, there was a situation where Client Authentication Bypass occurred in certain client-certification scenarios for SSL, TLS, and DTLS...

Astra Linux – Vulnerability in OpenSSH

In SSH in OpenSSH before version 9.6, OS command injection could occur if a user name or host name contained shell metacharacters, and this name was referenced by an expansion token in certain situations. For example, a untrusted Git repository might contain a submodule with shell metacharacters ...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2. A specially crafted JPEG file can cause the JPEG parser in grub2 to incorrectly check the boundaries of its internal buffers, leading to an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is still a concer...

Astra Linux – Vulnerability in PHP 7.3

In PHP versions prior to 7.4.31, 8.0.24, and 8.1.11, this vulnerability allows network and same-site attackers to set an insecure cookie in the victim’s browser. This cookie is treated as a Host- or Secure- cookie by PHP applications...

Astra Linux – Vulnerability in grub2

The GRUB2’s shimlock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules being loaded in GRUB2, thereby breaking the secure boot trust-chain...

Astra Linux – Vulnerability in grub2

The “read” command is used to read the keyboard input from the user. While reading, the input length is stored as a 32-bit integer value. This value is then used to reallocate the line buffer to accommodate the next character. During this process, if the line is long enough, it’s possible for thi...

Astra Linux – Vulnerability in Firefox and Thunderbird

Through complicated navigation with new windows, an HTTP page could inherit a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Astra Linux – Vulnerability in Systemd

Before version 247, systemd does not properly prevent local privilege escalation for certain Sudo configurations. For example, plausible sudoers files may allow the execution of the “systemctl status” command. Specifically, systemd does not set LESSSECURE to 1, allowing other programs to be...

Astra Linux – Vulnerability in grub2

A buffer overflow was detected in grubfontconstructglyph. A maliciously crafted pf2 font can cause an overflow when calculating the maxglyphsize value. This results in allocating a buffer that is smaller than necessary for the glyph, leading to another buffer overflow and an out-of-bounds write t...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Wipe copies of clear-key structures in case of failure. Wipe all sensitive data from the stack for all IOCTLs that convert a clear-key into a protected-or-secure-key...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: EFI: Do not import certificates from UEFI Secure Boot for T2 Macs. On Apple T2 Macs, when Linux attempts to read the db and dbx EFI variables during early boot to load UEFI Secure Boot certificates, a page fault occurs in the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, if the IMA appraisal method is used with the “imaappraiselog” boot parameter, lockdown can be circumvented using kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents the “imaappraiselog” parameter from being set during boot, but this does not cover...

Astra Linux – Vulnerability in Linux 5.10

A flaw was discovered in the Linux kernel. The existing KVM SEV API contains a vulnerability that allows a non-root host user-level application to crash the host kernel by creating a confidential guest VM instance in an AMD CPU that supports Secure Encrypted Virtualization SEV...

Astra Linux – Vulnerability in xorg-server

A heap buffer overflow flaw was discovered in the DisableDevice function of the X.Org server. This issue may cause an application to crash, or in some cases, lead to remote code execution in SSH X11 forwarding environments...

Astra Linux – Vulnerability in Firefox and Thunderbird

By injecting a cookie with certain special characters, an attacker on a shared subdomain that is not in a secure context can set and overwrite cookies from a secure context. This leads to session fixation and other attacks. This vulnerability affects Firefox ESR 102.3, Thunderbird 102.3, and...