Ubuntu.comUB:CVE-2021-46930CVE-2021-46930
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%
In the Linux kernel, the following vulnerability has been resolved: usb:
mtu3: fix list_head check warning This is caused by uninitialization of
list_head. BUG: KASAN: use-after-free in __list_del_entry_valid+0x34/0xe4
Call trace: dump_backtrace+0x0/0x298 show_stack+0x24/0x34
dump_stack+0x130/0x1a8 print_address_description+0x88/0x56c
__kasan_report+0x1b8/0x2a0 kasan_report+0x14/0x20 __asan_load8+0x9c/0xa0
__list_del_entry_valid+0x34/0xe4 mtu3_req_complete+0x4c/0x300 [mtu3]
mtu3_gadget_stop+0x168/0x448 [mtu3]
usb_gadget_unregister_driver+0x204/0x3a0 unregister_gadget_item+0x44/0xa4
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 20.04 | noarch | linux | < 5.4.0-105.119 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1069.73 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1073.76 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-azure-5.4 | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-bluefield | < 5.4.0-1032.35 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-gcp | < 5.4.0-1068.72 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-gcp-5.4 | < any | UNKNOWN |
| ubuntu | 24.04 | noarch | linux-gke | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-gkeop | < 5.4.0-1037.38 | UNKNOWN |
References
git.kernel.org/linus/8c313e3bfd9adae8d5c4ba1cc696dcbc86fbf9bf (5.16-rc8)
git.kernel.org/stable/c/249ddfbe00570d6dc76208e88017937d4d374c79
git.kernel.org/stable/c/3b6efe0b7ba03cc2acf0694b46d6ff33c5b4c295
git.kernel.org/stable/c/585e2b244dda7ea733274e4b8fa27853d625d3bf
git.kernel.org/stable/c/8c313e3bfd9adae8d5c4ba1cc696dcbc86fbf9bf
launchpad.net/bugs/cve/CVE-2021-46930
nvd.nist.gov/vuln/detail/CVE-2021-46930
security-tracker.debian.org/tracker/CVE-2021-46930
www.cve.org/CVERecord?id=CVE-2021-46930
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%