Medium severity · published Oct 29, 2023
CVE-2021-33634
Malicious image running containers may cause DoS attacks
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
iSulad uses the lcr+lxc runtime (default) to run malicious images, which can cause DOS.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LC
lcr · openEuler
through 2.0.9-6,2.1.2-3 · source: vendor
IC
Icr · Openeuler
before 2.0.9-6; 2.1.0 before 2.1.2-3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33634
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33634
Patch
https://gitee.com/src-openeuler/lcr/pulls/251/files
Patch
https://gitee.com/src-openeuler/lcr/pulls/257/files
Vendor Advisory
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1692