CVE-2020-25723

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on t...

CVE-2020-25723

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on t...

CVE-2020-25723

CVE-2020-25723 affects QEMU’s USB EHCI emulation. A reachable assertion issue may occur while processing USB requests due to missing handling of DMA memory map failure. A privileged user inside the guest could send bogus USB requests and crash the QEMU process on the host, resulting in a denial o...

CVE-2020-25723: Reachable Assertion

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on t...

Using Speakeasy Emulation Framework Programmatically to Unpack Malware

Andrew Davis recently announced the public release of his new Windows emulation framework named Speakeasy. While the introductory blog post focused on using Speakeasy as an automated malware sandbox of sorts, this entry will highlight another powerful use of the framework: automated malware...

USN-4650-1 qemu vulnerabilities

Alexander Bulekov discovered that QEMU incorrectly handled SDHCI device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvir...

kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c

An out of bounds OOB memory access flaw was found in i2csmbusxferemulated in drivers/i2c/i2c-core-smbus.c in I2C subsystem. A read request for length data-block0 greater than 'I2CSMBUSBLOCKMAX + 1' may cause underlying I2C driver write out of array's boundary. This could allow a local attacker wi...

unicorn:fuzz_emu_arm_armbe: Crash in helper_be_stl_mmu_armeb

Project: https://github.com/unicorn-engine/unicorn.git Detailed Report: https://oss-fuzz.com/testcase?key=5750813192093696 Project: unicorn Fuzzing Engine: afl Fuzz Target: fuzzemuarmarmbe Job Type: aflasanunicorn Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x6ad2ce2526f4 Crash...

CVE-2020-25723

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on t...

opensc:fuzz_pkcs15_reader: Stack-buffer-overflow in insert_key

Project: https://github.com/OpenSC/OpenSC.git Detailed Report: https://oss-fuzz.com/testcase?key=5109938829131776 Project: opensc Fuzzing Engine: honggfuzz Fuzz Target: fuzzpkcs15reader Job Type: honggfuzzasanopensc Platform Id: linux Crash Type: Stack-buffer-overflow READ 1 Crash Address:...

CVE-2020-25707

An infinite loop flaw was found in the e1000e NIC emulation code of QEMU. This issue occurs in the e1000ewritepackettoguest routine while processing bogus RX descriptor data transmitted by the guest. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a...

CVE-2020-6014

Check Point Endpoint Security Client for Windows (before vE83.20) is affected: loading a non-existent DLL during a Domain Name query can allow an administrator to execute code within a Check Point signed binary, with potential client termination. The vulnerability is described across CVE-2020-601...

PT-2020-18889

Name of the Vulnerable Software and Affected Versions Check Point Endpoint Security Client for Windows versions prior to E83.20 Description The issue arises when the Check Point Endpoint Security Client for Windows, with Anti-Bot or Threat Emulation blades installed, attempts to load a non-existe...

CVE-2020-6014: Process Control

Check Point Endpoint Security Client for Windows, with Anti-Bot or Threat Emulation blades installed, before version E83.20, tries to load a non-existent DLL during a query for the Domain Name. An attacker with administrator privileges can leverage this to gain code execution within a Check Point...

Design/Logic Flaw

In Amazon AWS Firecracker before 0.21.3, and 0.22.x before 0.22.1, the serial console buffer can grow its memory usage without limit when data is sent to the standard input. This can result in a memory leak on the microVM emulation thread, possibly occupying more memory than intended on the host...

CVE-2020-27174

In Amazon AWS Firecracker before 0.21.3, and 0.22.x before 0.22.1, the serial console buffer can grow its memory usage without limit when data is sent to the standard input. This can result in a memory leak on the microVM emulation thread, possibly occupying more memory than intended on the host...

CVE-2020-27174

In Amazon AWS Firecracker before 0.21.3, and 0.22.x before 0.22.1, the serial console buffer can grow its memory usage without limit when data is sent to the standard input. This can result in a memory leak on the microVM emulation thread, possibly occupying more memory than intended on the host...

PT-2020-16647

Name of the Vulnerable Software and Affected Versions Amazon AWS Firecracker versions 0.21.3 and earlier, 0.22.x before 0.22.1 Description The issue is related to the serial console buffer, which can grow its memory usage without limit when data is sent to the standard input. This can result in a...

CVE-2020-27174: Missing Release of Memory after Effective Lifetime

In Amazon AWS Firecracker before 0.21.3, and 0.22.x before 0.22.1, the serial console buffer can grow its memory usage without limit when data is sent to the standard input. This can result in a memory leak on the microVM emulation thread, possibly occupying more memory than intended on the host...

QEMU: usb: out-of-bounds r/w access issue while processing usb packets

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU. This issue occurs while processing USB packets from a guest when USBDevice 'setuplen' exceeds its 'databuf4096' in the dotokenin, dotokenout routines. This flaw allows a guest user to crash the QEMU process,...