CVE-2021-33632

HighCVSS 7.0/10Last modified Jun 17, 2026

Description

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in openEuler iSulad on Linux allows Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions. This vulnerability is associated with program files https://gitee.Com/openeuler/iSulad/blob/master/src/cmd/isulad/main.C.

This issue affects iSulad: 2.0.18-13, from 2.1.4-1 through 2.1.4-2.

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-367

Affected software

No affected versions have been published.

Timeline

Published
Mar 25, 2024
Last modified
Jun 17, 2026
NVD status
Deferred

Related CVEs from 2021

CVE-2021-336337.3Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in openEuler aops-ceres on Linux alCVE-2021-336345.5iSulad uses the lcr+lxc runtime (default) to run malicious images, which can cause DOS.CVE-2021-336357.8When malicious images are pulled by isula pull, attackers can execute arbitrary code.CVE-2021-336367.8When the isula load command is used to load malicious images, attackers can execute arbitrary code.CVE-2021-336376.5When the isula export command is used to export a container to an image and the container is controlled by an attacker, the attacker can escCVE-2021-336386.5When the isula cp command is used to copy files from a container to a host machine and the container is controlled by an attacker, the attacCVE-2021-336397.5REMAP cmd of SVM driver can be used to remap read only memory as read-write, then cause read only memory/file modified.CVE-2021-336409.8After tar_close(), libtar.c releases the memory pointed to by pointer t. After tar_close() is called in the list() function, it continues toCVE-2021-336417.8When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memoryCVE-2021-336425.5When a file is processed, an infinite loop occurs in next_inline() of the more_curly() function.CVE-2021-336439.1An 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-2021-336448.1An 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-2021-33632: High severity, CVSS 7.0 | Vulnix