Executive Summary

Informations
Name CVE-2024-39277 First vendor Publication 2024-06-21
Vendor Cve Last vendor Modification 2024-06-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

dma-mapping: benchmark: handle NUMA_NO_NODE correctly

cpumask_of_node() can be called for NUMA_NO_NODE inside do_map_benchmark() resulting in the following sanitizer report:

UBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28 index -1 is out of range for type 'cpumask [64][1]' CPU: 1 PID: 990 Comm: dma_map_benchma Not tainted 6.9.0-rc6 #29 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace:
dump_stack_lvl (lib/dump_stack.c:117) ubsan_epilogue (lib/ubsan.c:232) __ubsan_handle_out_of_bounds (lib/ubsan.c:429) cpumask_of_node (arch/x86/include/asm/topology.h:72) [inline] do_map_benchmark (kernel/dma/map_benchmark.c:104) map_benchmark_ioctl (kernel/dma/map_benchmark.c:246) full_proxy_unlocked_ioctl (fs/debugfs/file.c:333) __x64_sys_ioctl (fs/ioctl.c:890) do_syscall_64 (arch/x86/entry/common.c:83) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)

Use cpumask_of_node() in place when binding a kernel thread to a cpuset of a particular node.

Note that the provided node id is checked inside map_benchmark_ioctl(). It's just a NUMA_NO_NODE case which is not handled properly later.

Found by Linux Verification Center (linuxtesting.org).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39277

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3568

Sources (Detail)

https://git.kernel.org/stable/c/50ee21bfc005e69f183d6b4b454e33f0c2571e1f
https://git.kernel.org/stable/c/5a91116b003175302f2e6ad94b76fb9b5a141a41
https://git.kernel.org/stable/c/8e1ba9df9a35e8dc64f657a64e523c79ba01e464
https://git.kernel.org/stable/c/b41b0018e8ca06e985e87220a618ec633988fd13
https://git.kernel.org/stable/c/e64746e74f717961250a155e14c156616fcd981f
Source Url

Alert History

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Date Informations
2024-06-25 00:27:28
  • Multiple Updates
2024-06-21 21:27:27
  • Multiple Updates
2024-06-21 17:27:25
  • First insertion