PT-2022-4357 · Lib9P+1 · Lib9P+1

Robert Morris · Published 2022-08-09 · Updated 2024-08-29 · CVE-2022-23092

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions lib9p (affected versions not specified)

Description The issue is related to the handling of RWALK messages in lib9p, where a missing bounds check allows a specially crafted message to cause lib9p to overwrite unrelated memory. This could potentially lead to user-mode code execution on the host, subject to bhyve's Capsicum sandbox. The bug can be triggered by a malicious bhyve guest kernel.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

BDU:2022-05217

CVE-2022-23092

FREEBSD-SA-22_12

Affected Products

Freebsd

Lib9P

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2022-23092 · Security Note
• https://osv.dev/vulnerability/CVE-2022-23092 · Vendor Advisory
• https://security.freebsd.org/advisories/FreeBSD-SA-22:12.lib9p.asc · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-05217 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/682571 · Security Note
• https://twitter.com/CVEnew/status/1758000520906653702 · Twitter Post
• https://freebsd.org/security/advisories/FreeBSD-SA-22:12.lib9p.asc · Note
• https://security.netapp.com/advisory/ntap-20240415-0009 · Note