CVE-2021-47273
Linux Kernel USB dwc3-meson-g12a NULL Pointer Dereference Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled When only PHY1 is used (for example on Odroid-HC4), the regmap init code uses the usb2 ports when doesn't initialize the PHY1 regmap entry. This fixes: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 ... pc : regmap_update_bits_base+0x40/0xa0 lr : dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8 ... Call trace: regmap_update_bits_base+0x40/0xa0 dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8 dwc3_meson_g12a_usb2_init+0x7c/0xc8 dwc3_meson_g12a_usb_init+0x28/0x48 dwc3_meson_g12a_probe+0x298/0x540 platform_probe+0x70/0xe0 really_probe+0xf0/0x4d8 driver_probe_device+0xfc/0x168 ...
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 26, 2024, 8:48 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47273.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47273 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47273 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 26, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.8 up to (excluding) 5.10.44 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.11 *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 No Types Assigned https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 Patch Changed Reference Type https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 No Types Assigned https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 Patch Changed Reference Type https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 No Types Assigned https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 Patch Changed Reference Type https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 No Types Assigned https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 Patch Changed Reference Type https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 No Types Assigned https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 Patch Changed Reference Type https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 No Types Assigned https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 Added Reference https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 Added Reference https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled When only PHY1 is used (for example on Odroid-HC4), the regmap init code uses the usb2 ports when doesn't initialize the PHY1 regmap entry. This fixes: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 ... pc : regmap_update_bits_base+0x40/0xa0 lr : dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8 ... Call trace: regmap_update_bits_base+0x40/0xa0 dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8 dwc3_meson_g12a_usb2_init+0x7c/0xc8 dwc3_meson_g12a_usb_init+0x28/0x48 dwc3_meson_g12a_probe+0x298/0x540 platform_probe+0x70/0xe0 really_probe+0xf0/0x4d8 driver_probe_device+0xfc/0x168 ... Added Reference kernel.org https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47273 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47273
weaknesses.