Security Bulletin: Multiple security vulnerabilities in Snake YAML affect IBM Sterling B2B Integrator

Summary IBM Sterling B2B Integrator uses Snake YAML. Vulnerability Details CVEID: CVE-2017-18640 DESCRIPTION: SnakeYAML is vulnerable to a denial of service, caused by an entity expansion in Alias feature during a load operation. By sending a specially crafted request, a remote attacker could...

USN-6497-1: Linux kernel (OEM) vulnerabilities

Maxim Levitsky discovered that the KVM nested virtualization SVM implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service host kernel crash. CVE-2023-5090 Alon Zahavi discovered that the...

snakeyaml: Denial of Service due to missing nested depth limitation for collections

A flaw was found in the org.yaml.snakeyaml package. This flaw allows an attacker to cause a denial of service DoS due to missing nested depth limitation for collections...

jetty: OpenId Revoked authentication allows one request

Jetty is a Java based web server and servlet engine. Versions 9.4.21 through 9.4.51, 10.0.15, and 11.0.15 are vulnerable to weak authentication. If a Jetty OpenIdAuthenticator uses the optional nested LoginService, and that LoginService decides to revoke an already authenticated user, then the...

GHSA-4JQ9-2XHW-JPX7 Java: DoS Vulnerability in JSON-JAVA

Summary A denial of service vulnerability in JSON-Java was discovered by ClusterFuzz. A bug in the parser means that an input string of modest size can lead to indefinite amounts of memory being used. There are two issues: 1 the parser bug can be used to circumvent a check that is supposed to...

CVE-2023-20566

Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity...

CVE-2022-23830

SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity...

kernel: KVM: nVMX: missing consistency checks for CR0 and CR4

A flaw was found in the KVM's Intel nested virtualization feature nVMX. The effective values of the guest CR0 and CR4 registers could differ from those included in the VMCS12. In rare circumstances i.e., kvmintel module loaded with parameters nested=1 and ept=0 this could allow a malicious guest ...

kernel: KVM: x86/mmu: race condition in direct_page_fault()

A flaw was found in the Linux kernel in the KVM. A race condition in directpagefault allows guest OS users to cause a denial of service host OS crash or host OS memory corruption when nested virtualization and the TDP MMU are enabled...

kernel: KVM: nVMX: missing consistency checks for CR0 and CR4

A flaw was found in the KVM's Intel nested virtualization feature nVMX. The effective values of the guest CR0 and CR4 registers could differ from those included in the VMCS12. In rare circumstances i.e., kvmintel module loaded with parameters nested=1 and ept=0 this could allow a malicious guest ...

kernel: KVM: x86/mmu: race condition in direct_page_fault()

A flaw was found in the Linux kernel in the KVM. A race condition in directpagefault allows guest OS users to cause a denial of service host OS crash or host OS memory corruption when nested virtualization and the TDP MMU are enabled...

AMD EPYC Security Vulnerability

AMD EPYC is an x86 architecture server microprocessor product line from AMD, known as "Xiao Long" in Chinese, utilizing the Zen microarchitecture. A security vulnerability exists in AMD EPYC, which stems from a possible change in the SMM configuration when SNP is enabled, resulting in a loss of...

edk2 security, bug fix, and enhancement update

20230524-3 - edk2-OvmfPkg-AmdSev-fix-BdsPlatform.c-assertion-failure-d.patch bz2190244 - edk2-OvmfPkg-IoMmuDxe-add-locking-to-IoMmuAllocateBounceB.patch bz2211060 - edk2-OvmfPkg-AmdSevDxe-Shim-Reboot-workaround-RHEL-only.patch bz2218196 - Resolves: bz2190244 EDK2 AMDSERVER 9.3 Bug OVMF AP Creatio...

mariadb: Crash in set_var.cc via certain UPDATE queries with nested subqueries

MariaDB through 10.5.9 allows a setvar.cc application crash via certain uses of an UPDATE statement in conjunction with a nested subquery...

kernel: KVM: VMX: Fix crash due to uninitialized current_vmcs

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Fix crash due to uninitialized currentvmcs KVM enables 'Enlightened VMCS' and 'Enlightened MSR Bitmap' when running as a nested hypervisor on top of Hyper-V. When MSR bitmap is updated, evmcstouchmsrbitmap function uses...

kernel: KVM: nVMX: missing consistency checks for CR0 and CR4

A flaw was found in the KVM's Intel nested virtualization feature nVMX. The effective values of the guest CR0 and CR4 registers could differ from those included in the VMCS12. In rare circumstances i.e., kvmintel module loaded with parameters nested=1 and ept=0 this could allow a malicious guest ...

Rocky Linux 8 : kernel-rt (RLSA-2021:3547)

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:3547 advisory. - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provide...

Rocky Linux 8 : kernel (RLSA-2021:3548)

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:3548 advisory. - A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provide...

AZL-35596 CVE-2023-5088 affecting package qemu for versions less than 6.2.0-21

A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead potentially overwriting the VM's boot code. This could be used, for example, by L2 guests with a virtual disk vdiskL2 stored on a virtual disk of an L1 vdiskL1...

snakeyaml: Denial of Service due to missing nested depth limitation for collections

A flaw was found in the org.yaml.snakeyaml package. This flaw allows an attacker to cause a denial of service DoS due to missing nested depth limitation for collections...