CVE-2021-33643

CriticalCVSS 9.1/10Last modified Jun 23, 2026

Description

An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weakness enumeration

CWE-125

Affected software

No affected versions have been published.

Timeline

Published
Aug 10, 2022
Last modified
Jun 23, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-336448.1An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable CVE-2021-336457.5The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.CVE-2021-336467.5The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak.CVE-2021-336477.5When performing the inference shape operation of the Tile operator, if the input data type is not int or int32, it will access data outside CVE-2021-336487.5When performing the inference shape operation of Affine, Concat, MatMul, ArgMinMax, EmbeddingLookup, and Gather operators, if the input shapCVE-2021-336497.5When performing the inference shape operation of the Transpose operator, if the value in the perm element is greater than or equal to the siCVE-2021-336507.5When performing the inference shape operation of the SparseToDense operator, if the number of inputs is less than three, it will access dataCVE-2021-336517.5When performing the analytical operation of the DepthwiseConv2D operator, if the attribute depth_multiplier is 0, it will cause a division bCVE-2021-336527.5When the Reduce operator run operation is executed, if there is a value of 0 in the parameter axis_sizes element, it will cause a division bCVE-2021-336537.5When performing the derivation shape operation of the SpaceToBatch operator, if there is a value of 0 in the parameter block_shape element, CVE-2021-336547.5When performing the initialization operation of the Split operator, if a dimension in the input shape is 0, it will cause a division by 0 exCVE-2021-336556.7When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.