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CVE-2022-23085— Potential jail escape vulnerabilities in netmap

Quick assessment

Affected
FreeBSD FreeBSD
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreeBSD是Freebsd基金会的一套类Unix操作系统。 FreeBSD存在输入验证错误漏洞，该漏洞源于netmap的nmreq_copyin（）函数中的整数溢出。本地用户可以触发整数溢出，并以提升的权限执行任意代码。攻击者利用该漏洞升级系统上的权限。

AI Predicted 7.8 Difficulty: Hard EPSS 0.49% · P40
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I. Basic Information for CVE-2022-23085

Vulnerability Information
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Vulnerability Title
Potential jail escape vulnerabilities in netmap
Source: CVE Program / CVE List V5
Vulnerability Description
A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow. This insufficient bounds checking could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
FreeBSD 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是Freebsd基金会的一套类Unix操作系统。 FreeBSD存在输入验证错误漏洞，该漏洞源于netmap的nmreq_copyin（）函数中的整数溢出。本地用户可以触发整数溢出，并以提升的权限执行任意代码。攻击者利用该漏洞升级系统上的权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FreeBSD FreeBSD 13.1-RC1 ~ p1 -

II. Public POCs for CVE-2022-23085

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III. Intelligence Information for CVE-2022-23085

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Vendor Advisories for CVE-2022-23085 (1)

Other References for CVE-2022-23085 (1)

Same Patch Batch · FreeBSD · 2024-02-15 · 12 CVEs total

CVE-2022-23093 Stack overflow in ping(8)
CVE-2022-23092 Missing bounds check in 9p message handling
CVE-2022-23091 Memory disclosure by stale virtual memory mapping
CVE-2022-23090 AIO credential reference count leak
CVE-2022-23089 Out of bound read in elf_note_prpsinfo()
CVE-2022-23088 802.11 heap buffer overflow
CVE-2022-23087 Bhyve e82545 device emulation out-of-bounds write
CVE-2022-23086 mpr/mps/mpt driver ioctl heap out-of-bounds write
CVE-2022-23084 Potential jail escape vulnerabilities in netmap
CVE-2024-25941 jail(2) information leak
CVE-2024-25940 bhyveload(8) host file access

IV. Related Vulnerabilities

Same product: FreeBSD
Same vendor: FreeBSD

V. Comments for CVE-2022-23085

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