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CVE-2023-1078

Good to know:

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Date: March 27, 2023

A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user can trigger this with rds_message_put(). Type confusion leads to `struct rds_msg_zcopy_info *info` actually points to something else that is potentially controlled by local user. It is known how to trigger this, which causes an out of bounds access, and a lock corruption.

Language: C

Severity Score

Related Resources (9)

https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://nvd.nist.gov/vuln/detail/CVE-2023-1078
https://security-tracker.debian.org/tracker/CVE-2023-1078
https://security.netapp.com/advisory/ntap-20230505-0004/
https://people.canonical.com/~ubuntu-security/cve/CVE-2023-1078
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=f753a68980cf4b59a80fe677619da2b1804f526d
http://www.openwall.com/lists/oss-security/2023/11/05/1
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
https://www.mend.io/vulnerability-database/CVE-2023-1078

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Access of Resource Using Incompatible Type ('Type Confusion')

CWE-843

Top Fix

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CVSS v3.1

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

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