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CVE-2024-42236— usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 usb:gadget:configfs 模块用户空间提供的字符串可能长度为零，未检查这将导致在usb_string_copy中发生越界读写。

CVSS 7.8 · High EPSS 0.24% · P14

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 88af8bbe4ef781031ad3370847553f3b42ba0076< a444c3fc264119801575ab086e03fb4952f23fd0 affected
88af8bbe4ef781031ad3370847553f3b42ba0076< c95fbdde87e39e5e0ae27f28bf6711edfb985caa affected
88af8bbe4ef781031ad3370847553f3b42ba0076< e8474a10c535e6a2024c3b06e37e4a3a23beb490 affected
88af8bbe4ef781031ad3370847553f3b42ba0076< 72b8ee0d9826e8ed00e0bdfce3e46b98419b37ce affected
88af8bbe4ef781031ad3370847553f3b42ba0076< 2d16f63d8030903e5031853e79d731ee5d474e70 affected
88af8bbe4ef781031ad3370847553f3b42ba0076< d1205033e912f9332c1dbefa812e6ceb0575ce0a affected
88af8bbe4ef781031ad3370847553f3b42ba0076< eecfefad0953b2f31aaefa058f7f348ff39c4bba affected
88af8bbe4ef781031ad3370847553f3b42ba0076< 6d3c721e686ea6c59e18289b400cc95c76e927e0 affected
… +10 more rows
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I. Basic Information for CVE-2024-42236

Vulnerability Information
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Vulnerability Title
usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: configfs: Prevent OOB read/write in usb_string_copy() Userspace provided string 's' could trivially have the length zero. Left unchecked this will firstly result in an OOB read in the form `if (str[0 - 1] == '\n') followed closely by an OOB write in the form `str[0 - 1] = '\0'`. There is already a validating check to catch strings that are too long. Let's supply an additional check for invalid strings that are too short.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 usb:gadget:configfs 模块用户空间提供的字符串可能长度为零，未检查这将导致在usb_string_copy中发生越界读写。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 88af8bbe4ef781031ad3370847553f3b42ba0076 ~ a444c3fc264119801575ab086e03fb4952f23fd0 -
Linux Linux 3.10 -

II. Public POCs for CVE-2024-42236

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III. Intelligence Information for CVE-2024-42236

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Patches & Fixes for CVE-2024-42236 (5)

Same Patch Batch · Linux · 2024-08-07 · 19 CVEs total

CVE-2024-42232 9.8 CRITICAL libceph: fix race between delayed_work() and ceph_monc_stop()
CVE-2024-42249 7.8 HIGH spi: don't unoptimize message in spi_async()
CVE-2024-42234 7.8 HIGH mm: fix crashes from deferred split racing folio migration
CVE-2024-42233 7.8 HIGH filemap: replace pte_offset_map() with pte_offset_map_nolock()
CVE-2024-42235 7.8 HIGH s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()
CVE-2024-42250 7.8 HIGH cachefiles: add missing lock protection when polling
CVE-2024-42247 7.5 HIGH wireguard: allowedips: avoid unaligned 64-bit memory accesses
CVE-2024-42242 mmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE
CVE-2024-42237 firmware: cs_dsp: Validate payload length before processing block
CVE-2024-42238 firmware: cs_dsp: Return error if block header overflows file
CVE-2024-42239 bpf: Fail bpf_timer_cancel when callback is being cancelled
CVE-2024-42240 x86/bhi: Avoid warning in #DB handler due to BHI mitigation
CVE-2024-42241 mm/shmem: disable PMD-sized page cache if needed
CVE-2024-42244 USB: serial: mos7840: fix crash on resume
CVE-2024-42243 mm/filemap: make MAX_PAGECACHE_ORDER acceptable to xarray
CVE-2024-42245 Revert "sched/fair: Make sure to try to detach at least one movable task"
CVE-2024-42246 net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket
CVE-2024-42248 tty: serial: ma35d1: Add a NULL check for of_node

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-42236

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