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CVE-2022-47943

Date: December 22, 2022

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case. Converted from WS-2022-0421, on 2022-12-29.

Language: C

Severity Score

Related Resources (10)

http://www.openwall.com/lists/oss-security/2022/12/23/10
https://security.netapp.com/advisory/ntap-20230216-0006/
https://github.com/torvalds/linux/commit/ac60778b87e45576d7bfdbd6f53df902654e6f09
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
https://www.zerodayinitiative.com/advisories/ZDI-22-1691/
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-47943
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac60778b87e45576d7bfdbd6f53df902654e6f09
https://nvd.nist.gov/vuln/detail/CVE-2022-47943
https://security-tracker.debian.org/tracker/CVE-2022-47943
https://www.mend.io/vulnerability-database/CVE-2022-47943

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): HIGH

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