CVE-2024-38662

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

21/06/2024

Last modified:

24/06/2024

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow delete from sockmap/sockhash only if update is allowed We have seen an influx of syzkaller reports where a BPF program attached to a tracepoint triggers a locking rule violation by performing a map_delete on a sockmap/sockhash. We don&#39;t intend to support this artificial use scenario. Extend the existing verifier allowed-program-type check for updating sockmap/sockhash to also cover deleting from a map. From now on only BPF programs which were previously allowed to update sockmap/sockhash can delete from these map types.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

4.70

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.10 (including)	5.10.219 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.15 (including)	5.15.161 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.1 (including)	6.1.93 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.6 (including)	6.6.33 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.9 (including)	6.9.4 (excluding)
cpe:2.3:o:linux:linux_kernel:6.10.0:rc1::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-38662

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools