2171 matches found
CVE-2020-10878
Perl before 5.30.3 has an integer overflow related to mishandling of a "PLregkindOPn == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection. An application written in Perl would only be vulnerable to this flaw if it evaluat...
UBUNTU-CVE-2020-10878
Perl before 5.30.3 has an integer overflow related to mishandling of a "PLregkindOPn == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection. An application written in Perl would only be vulnerable to this flaw if it evaluat...
HackerOne: Uploading large payload on domain instructions causes server-side DoS
This was a DoS vulnerability in a specific endpoint that didn't limit the size of the upload. As explained in the hacker summary, we limited the payload to mitigate the attack. Note : To everyone who sees this report, if a program accepts DoS vulnerabilities please try to try test carefully as it...
Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources
A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...
Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources
A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...
SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:1124-1)
This update for xen fixes the following issues : Security issues fixed : CVE-2020-11742: Bad continuation handling in GNTTABOPcopy bsc1169392. CVE-2020-11740, CVE-2020-11741: xen: XSA-313 multiple xenoprof issues bsc1168140. CVE-2020-11739: Missing memory barriers in read-write unlock paths...
Medium: kernel
Issue Overview: A stack buffer overflow issue was found in the getrawsocket routine of the Host kernel accelerator for virtio net vhost-net driver. It could occur while doing an ictolVHOSTNETSETBACKEND call, and retrieving socket name in a kernel stack variable via getrawsocket. A user able to...
Denial Of Service (DoS)
kvm is vulnerable to denial of service DoS. The vulnerability exists as a NULL pointer dereference flaw was found when the host system had a processor with the Intel VT-x extension enabled. A privileged guest user could use this flaw to trick the host into emulating a certain instruction...
Denial Of Service (DoS)
kernel is vulnerable to denial of service DoS. The vulnerability exists as a flaw was found in the Memory-mapped I/O MMIO instruction decoder in the Xen hypervisor implementation. An unprivileged guest user could use this flaw to trick the hypervisor into emulating a certain instruction, which...
CVE-2020-2732
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...
DEBIAN-CVE-2020-2732
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...
CVE-2020-2732
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...
Design/Logic Flaw
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...
CVE-2020-2732
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...
CVE-2020-2732
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...
Security Advisory - Information Disclosure Vulnerability about SWAPGS Instruction
An information disclosure vulnerability exists when certain x86-64-bit central processing units CPU speculatively access memory, this vulnerability uses the SWAPGS instruction in the CPU. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially...
welpwn
This is an exploit module for a vulnerability in a binary, targeting a heap-based overflow in a baby heap implementation. The exploit is designed to execute a shell on the vulnerable system. The exploit uses a combination of alloc, show, and delete functions to manipulate the heap and create a...
Xen Arm-Based CPU Speculation past the ERET Instruction (XSA-312)
According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a speculative memory accesses vulnerability. Some CPUs can speculate past an ERET instruction and potentially perform speculative accesses to memory before processing the exception return...
Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5542)
The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-5542 advisory. - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30847137 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function...