What is CVE-2021-27364?

CVE-2021-27364 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, classified as a Out-of-bounds Read flaw (CWE-125). CVE-2021-27364 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-27364?

CVE-2021-27364 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2021-27364?

No patch is currently available for CVE-2021-27364. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-27364 actively exploited?

CVE-2021-27364 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

CVE-2021-27364

High

An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages.

Package Linux Kernel

Published 2021-03-07

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-125

CVE-2021-27364 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-27364 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Packet Storm
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html

Third Party Advisory VDB Entry
Blog
https://blog.grimm-co.com/2021/03/new-old-bugs-in-linux-kernel.html

Exploit Third Party Advisory
SUSE
https://bugzilla.suse.com/show_bug.cgi?id=1182717

Issue Tracking Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html

Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20210409-0001/

Third Party Advisory
Openwall
https://www.openwall.com/lists/oss-security/2021/03/06/1

Mailing List Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=688e8128b7a92df982709a4137ea4588d16f24aa
Patch
Kernel patch commit
https://www.oracle.com/security-alerts/cpuoct2021.html
Patch

Details

CVE ID CVE-2021-27364

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2021-03-07

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-27364?

CVE-2021-27364 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . CVE-2021-27364 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-27364?

CVE-2021-27364 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2021-27364?

No patch is currently available for CVE-2021-27364. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-27364 actively exploited?

No — CVE-2021-27364 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →