#VU77770 Out-of-bounds read in NetBSD


Published: 2023-06-28

Vulnerability identifier: #VU77770

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
NetBSD
Operating systems & Components / Operating system

Vendor: NetBSD Foundation, Inc

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary conditions within the compat_netbsd32, compat_linux, compat_linux32 subsystems. A local user can execute a specially crafted syscall, trigger an out-of-bounds read error and read contents of kernel memory.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NetBSD: 8.0 - 10


External links
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2023-002.txt.asc


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability