CVE-2021-47344

MEDIUM
Published May 21, 2024 Modified Dec 24, 2024 CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: media: zr364xx: fix memory leak in zr364xx_start_readpipe syzbot reported memory leak in zr364xx driver. The problem was in non-freed urb in case of usb_submit_urb() fail. backtrace: [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline] [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline] [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516 [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc https://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65 https://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa https://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235 https://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e https://git.kernel.org/stable/c/bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513 https://git.kernel.org/stable/c/c57b2bd3247925e253729dce283d6bf6abc9339d https://git.kernel.org/stable/c/c57bfd8000d7677bf435873b440eec0c47f73a08 https://git.kernel.org/stable/c/d69b39d89f362cfeeb54a68690768d0d257b2c8f https://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc https://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65 https://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa https://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235 https://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e https://git.kernel.org/stable/c/bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513 https://git.kernel.org/stable/c/c57b2bd3247925e253729dce283d6bf6abc9339d https://git.kernel.org/stable/c/c57bfd8000d7677bf435873b440eec0c47f73a08 https://git.kernel.org/stable/c/d69b39d89f362cfeeb54a68690768d0d257b2c8f

Frequently Asked Questions

What is CVE-2021-47344? +
In the Linux kernel, the following vulnerability has been resolved: media: zr364xx: fix memory leak in zr364xx_start_readpipe syzbot reported memory leak in zr364xx driver. The problem was in non-freed urb in case of usb_submit_urb() fail. backtrace: [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline] [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline] [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516 [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576 It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2021-47344? +
CVE-2021-47344 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2021-47344? +
CVE-2021-47344 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2021-47344? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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