7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
19.3%
A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in
the Linux Kernel. After CIFS transfers response data to a system call,
there are still local variable points to the memory region, and if the
system call frees it faster than CIFS uses it, CIFS will access a free
memory region, leading to a denial of service.
Author | Note |
---|---|
sbeattie | this affects the KSMBD subsystem, which generally should not be used, userspace samba is the safer choice. marking the introduction of the cifsd/ksmbd config option as the break commit possible duplicate of CVE-2022-48425? The fixing commit is the same for both CVEs. quite likely 98bea253aa28ad8be2ce565a9ca21beb4a9419e5 is not an accurate fix for this issue. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 22.04 | noarch | linux | < 5.15.0-83.92 | UNKNOWN |
ubuntu | 23.04 | noarch | linux | < 6.2.0-34.34 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1044.49 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < 5.15.0-1044.49~20.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < 5.15.0-1046.53 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure-5.15 | < 5.15.0-1046.53~20.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure-fde | < 5.15.0-1046.53.1 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure-fde-5.15 | < 5.15.0-1046.53~20.04.1.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-bluefield | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-gcp | < 5.15.0-1041.49 | UNKNOWN |
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
19.3%