What is CVE-2021-29648?

CVE-2021-29648 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2021-29648 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-29648?

CVE-2021-29648 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-29648?

No patch is currently available for CVE-2021-29648. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-29648 actively exploited?

CVE-2021-29648 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-29648

Medium

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolved_ids and resolved_sizes are intentionally uninitialized in the vmlinux BPF Type Format (BTF), which can cause a system crash upon an unexpected access attempt (in map_create in kernel/bpf/syscall.c or check_btf_info in kernel/bpf/verifier.c), aka CID-350a5c4dd245.

Package Linux Kernel

Published 2021-03-30

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-307

CVE-2021-29648 is classified as CWE-307

See CWE-307 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-29648 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Details

CVE ID CVE-2021-29648

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2021-03-30

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-29648?

CVE-2021-29648 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-29648 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-29648?

CVE-2021-29648 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-29648?

No patch is currently available for CVE-2021-29648. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-29648 actively exploited?

No — CVE-2021-29648 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.