Fedora 33 : kernel (2021-7143aca8cb)

The remote Fedora 33 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-7143aca8cb advisory. - An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV backend, the driver maps grant...

fastify-reply-from 存在输入验证错误漏洞

Matteo Collina fastify-reply-from is Matteo Collina an open source application . It is used to forward the current http request to another server. A security vulnerability exists in fastify-reply-from before version 4.0.2, which can be exploited to escape the prefix of a proxy backend service by...

CVE-2021-27799

eanleadingzeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code...

UBUNTU-CVE-2021-27799

eanleadingzeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code...

CVE-2021-27799

eanleadingzeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code...

CVE-2021-27799

eanleadingzeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code...

CVE-2021-27799

eanleadingzeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code...

An issue was discovered in the Linux kernel 3.2 through 5.10.16 as used by Xen. Grant mapping operations often occur in batch hypercalls where a number of operations are done in a single hypercall the success or failure of each one is reported to the backend driver and the backend driver then loops over the results performing follow-up actions based on the success or failure of each operation. Unfortunately when running in PV mode the Linux backend drivers mishandle this: Some errors are ignored effectively implying their success from the success of related batch elements. In other cases errors resulting from one batch element lead to further batch elements not being inspected and hence successful ones to not be possible to properly unmap upon error recovery. Only systems with Linux backends running in PV mode are vulnerable. Linux backends run in HVM / PVH modes are not vulnerable. This affects arch/*/xen/p2m.c and drivers/xen/gntdev.c.

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CVE-2021-21328

Vapor is a web framework for Swift. In Vapor before version 4.40.1, there is a DoS attack against anyone who Bootstraps a metrics backend for their Vapor app. The following is the attack vector: 1. send unlimited requests against a vapor instance with different paths. this will create unlimited...

CVE-2021-21328 Denial of Service

Vapor is a web framework for Swift. In Vapor before version 4.40.1, there is a DoS attack against anyone who Bootstraps a metrics backend for their Vapor app. The following is the attack vector: 1. send unlimited requests against a vapor instance with different paths. this will create unlimited...

File Upload Vulnerability in OurPHP Admin Backend

OurPHP is a PHP MySQL-based development of W3C-compliant site-building system. A file upload vulnerability exists in the administrative backend of OurPHP, which allows attackers to gain control of the web server...

Zint Barcode Generator Buffer Error Vulnerability

GNU Zint Barcode Generator is a GNU open source application. It is used to generate bar? A buffer error vulnerability exists in Zint Barcode Generator 2.19.1, which stems from a stack-based buffer overflow in the leading zeros in backend/upcean.c. The vulnerability is caused by a stack-based buff...

PT-2021-14425 · Vapor · Vapor

Name of the Vulnerable Software and Affected Versions: Vapor versions prior to 4.40.1 Description: The issue allows for a Denial of Service DoS attack against Vapor applications that have a metrics backend enabled. An attacker can send unlimited requests with different paths to a Vapor instance,...

OPENSUSE-SU-2021:0341-1 Security update for nghttp2

This update for nghttp2 fixes the following issues: nghttp2 was update to version 1.40.0 bsc1166481 - lib: Add nghttp2checkauthority as public API - lib: Fix the bug that stream is closed with wrong error code - lib: Faster huffman encoding and decoding - build: Avoid filename collision of static...

An issue was discovered in the Linux kernel 2.6.39 through 5.10.16 as used in Xen. Block net and SCSI backends consider certain errors a plain bug deliberately causing a kernel crash. For errors potentially being at least under the influence of guests (such as out of memory conditions) it isn't correct to assume a plain bug. Memory allocations potentially causing such crashes occur only when Linux is running in PV mode though. This affects drivers/block/xen-blkback/blkback.c and drivers/xen/xen-scsiback.c.

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An issue was discovered in the Linux kernel 4.18 through 5.10.16 as used by Xen. The backend allocation (aka be-alloc) mode of the drm_xen_front drivers was not meant to be a supported configuration but this wasn't stated accordingly in its support status entry.

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An issue was discovered in the Linux kernel 3.11 through 5.10.16 as used by Xen. To service requests to the PV backend the driver maps grant references provided by the frontend. In this process errors may be encountered. In one case an error encountered earlier might be discarded by later processing resulting in the caller assuming successful mapping and hence subsequent operations trying to access space that wasn't mapped. In another case internal state would be insufficiently updated preventing safe recovery from the error. This affects drivers/block/xen-blkback/blkback.c.

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USN-4749-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

Bodong Zhao discovered a use-after-free in the Sun keyboard driver implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. CVE-2020-25669 It was discovered that the jfs file system implementation in the Linux kernel...

USN-4748-1 linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the jfs file system implementation in the Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use this to possibly cause a denial of service system crash. CVE-2020-27815 It was discovered that the memory management subsystem in the Linux kerne...

FreeBSD : FreeBSD -- Xen grant mapping error handling issues (5b8c6e1e-770f-11eb-b87a-901b0ef719ab)

Grant mapping operations often occur in batch hypercalls, where a number of operations are done in a single hypercall, the success or failure of each one reported to the backend driver, and the backend driver then loops over the results, performing follow-up actions based on the success or failur...