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CVE-2021-3559

libvirt: nodedev-list command may cause libvirt to crash on hosts with GRID driver installed

A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 6.5 Medium EPSS 1.0% KEV · Not listed
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CVE-2021-3507

QEMU: fdc: heap buffer overflow in DMA read data transfers

A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
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CVE-2021-3496

A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.

CVSS 3.1 · 7.8 High EPSS 1.1% KEV · Not listed
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CVE-2021-3491

Linux kernel io_uring PROVIDE_BUFFERS MAX_RW_COUNT bypass

The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc/<PID>/mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was addressed via commit d1f82808877b ("io_uring: truncate lengths larger than MAX_RW_COUNT on provide buffers") (v5.13-rc1) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced in ddf0322db79c ("io_uring: add IORING_OP_PROVIDE_BUFFERS") (v5.7-rc1).

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2021-3490

Linux kernel eBPF bitwise ops ALU32 bounds tracking

The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 ("bpf:Fix a verifier failure with xor") ( 5.10-rc1).

CVSS 3.1 · 7.8 High EPSS 27.4% KEV · Not listed
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CVE-2021-3489

Linux kernel eBPF RINGBUF map oversized allocation

The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") (v5.8-rc1).

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
CVE-2021-3482

exiv2: Heap-based buffer overflow in Jp2Image::readMetadata()

A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow via a crafted JPG image containing malicious EXIF data.

CVSS 3.1 · 6.5 Medium EPSS 2.2% KEV · Not listed
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CVE-2021-3470

redis: potential heap overflow when using a heap allocator other than jemalloc or glibc's malloc

A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemalloc or glibc's malloc, leading to potential out of bound write or process crash. Effectively this flaw does not affect the vast majority of users, who use jemalloc or glibc malloc.

CVSS 3.1 · 5.3 Medium EPSS 1.1% KEV · Not listed
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CVE-2021-3409

QEMU: sdhci: incomplete fix for CVE-2020-17380/CVE-2020-25085

The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
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Debian Linux Fedora Qemu and 1 more
CVE-2021-39997

There is a vulnerability of unstrict input parameter verification in the audio assembly.Successful exploitation of this vulnerability may cause out-of-bounds access.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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CVE-2021-39824

Adobe Premiere Elements png Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution

Adobe Premiere Elements version 2021.2235820 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious png file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

CVSS 3.0 · 7.8 High EPSS 1.8% KEV · Not listed
CVE-2021-39819

Adobe InCopy Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution

Adobe InCopy version 11.1 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious XML file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

CVSS 3.1 · 7.8 High EPSS 1.7% KEV · Not listed
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CVE-2021-39818

Adobe InCopy Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution

Adobe InCopy version 11.1 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious TIFF file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

CVSS 3.1 · 7.8 High EPSS 1.7% KEV · Not listed
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CVE-2021-39798

In Bitmap_createFromParcel of Bitmap.cpp, there is a possible arbitrary code execution due to a missing bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12LAndroid ID: A-213169612

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2021-39693

In onUidStateChanged of AppOpsService.java, there is a possible way to access location without a visible indicator due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-208662370

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2021-39685

kernel: USB gadget buffer overflow

In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2021-39633

In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-150694665References: Upstream kernel

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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