CVE-2021-33634

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

iSulad uses the lcr+lxc runtime (default) to run malicious images, which can cause DOS.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-665

Affected software

No affected versions have been published.

Timeline

Published
Oct 29, 2023
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

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-2021-336457.5The 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-2021-33634: Medium severity, CVSS 5.5 | Vulnix