12926 matches found
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fixed error handling for eventfd in kvmxeneventfdassign Do not call eventfdctxput in case of an error. Introduced a new goto target instead. - Paolo...
Astra Linux – Vulnerability in Linux, Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: avoid SBSA UART accessing the DMACR register The chapter “B Generic UART” in “ARM Server Base System Architecture” 1 describes a generic UART interface. Such a generic UART does not support DMA. In current cod...
Astra Linux – Vulnerability in Xen
Inappropriate x86 IOMMU timeout detection/handling: IOMMU processes commands that are issued in parallel with the operation of the CPUs that issue those commands. In the current implementation in Xen, asynchronous notifications of the completion of such commands are not used. Instead, the issuing...
Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15
A use-after-free flaw was discovered in xen9pfsfrontremovet in net/9p/transxen.c within the Xen transport for 9pfs in the Linux kernel. This flaw could allow a local attacker to cause the system to crash due to a race condition, potentially leading to a kernel information leak...
Astra Linux – Vulnerability in Xen
Potential speculative code storage bypasses exist in all supported CPU products. Combined with software vulnerabilities related to speculative execution of overwritten instructions, this could lead to incorrect speculation and potentially cause data leakage...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: acpi: Fixed suspend with Xen PV The commit f1e525009493 "x86/boot: Skipping realmode init code when running as Xen PV guest" missed one code path that accessed the realmodeheader, leading to a NULL dereference when suspending the...
Astra Linux – Vulnerability in Xen
x86: TSX Async Abort protections are not restored after S3. This issue relates to the TSX Async Abort speculative security vulnerability. For more details, please refer to https://xenbits.xen.org/xsa/advisory-305.html. To mitigate TAA by disabling TSX the default and preferred option, it is...
Astra Linux – Vulnerability in Linux 5.10, Linux
In the Linux kernel, the following vulnerability has been resolved: xen/netback: Avoid entering xenvifrxnextskb with an empty rx queue. xenvifrxnextskb expects the rx queue not to be empty. However, if the loop in xenvifrxaction performs multiple iterations, the availability of another skb in the...
Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: xen-netfront: Added the missing skbmarkforrecycle function. It should be noted that the skbmarkforrecycle function was introduced later than the “fixes” tag in commit 6a5bcd84e886 “pagepool: Allow drivers to hint on SKB recycling...
Astra Linux – Vulnerability in Xen
A issue was discovered in Xen versions 4.9 through 4.14.x. On the ARM architecture, a guest can control whether memory accesses bypass the cache. This means that Xen needs to ensure that all writes such as those during scrubbing have reached the memory before handing over the page to the guest...
Astra Linux – Vulnerability in Linux 5.10
The Linux kernel before version 5.18.13 lacked a clear mechanism for handling the block starting symbol .bss. This allowed Xen PV guest OS users to cause a denial of service or gain privileges...
Astra Linux – Vulnerability in Xen
Observable discrepancies in response times of some Intel processors may allow authorized users to potentially disclose information through local access...
Astra Linux – Vulnerability in Linux
A issue was discovered in the Linux kernel through version 5.11.3, when it was used with Xen PV. A certain part of the netback driver lacks proper handling of errors, such as failed memory allocations as a result of changes to the way errors related to grant mapping are handled. A denial-of-servi...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fixed the possibility of accessing a freed kirqfd instance. Nothing prevents simultaneous ioctl calls to privcmdirqfdassign and privcmdirqfddeassign. If this occurs, it is possible that a kirqfd created and added to...
Astra Linux – Vulnerability in Linux, Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: x86/xen: Fixed a memory leak in xeninitlockcpu. In xeninitlockcpu, the @name function allocates a new string using kasprintf. If the bindipitoirqhandler function fails, that allocated string should be freed; otherwise, it may lea...
Astra Linux – Vulnerability in Linux, Linux 5.10
Rogue backends can cause Denial of Service DoS attacks on guests through high-frequency events. This CNA information record relates to multiple Common Vulnerabilities and Exposures CVEs; the text explains which aspects/vulnerabilities correspond to which CVEs. Xen allows for the execution of PV...
CVE-2026-23558
The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status pages via XENMEMaddtophysmap. Some of the status pages may then be freed while...
EUVD-2026-30928
The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status pages via XENMEMaddtophysmap. Some of the status pages may then be freed while...
USN-8275-1 linux-xilinx-zynqmp vulnerabilities
Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges. CVE-2023-2640 Shir Tamari and Sagi Tzadik...