CVE-2022-23087— Bhyve e82545 device emulation out-of-bounds write
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I. Basic Information for CVE-2022-23087
Vulnerability Information
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Vulnerability Title
Bhyve e82545 device emulation out-of-bounds write
Source: NVD (National Vulnerability Database)
Vulnerability Description
The e1000 network adapters permit a variety of modifications to an Ethernet packet when it is being transmitted. These include the insertion of IP and TCP checksums, insertion of an Ethernet VLAN header, and TCP segmentation offload ("TSO"). The e1000 device model uses an on-stack buffer to generate the modified packet header when simulating these modifications on transmitted packets. When checksum offload is requested for a transmitted packet, the e1000 device model used a guest-provided value to specify the checksum offset in the on-stack buffer. The offset was not validated for certain packet types. A misbehaving bhyve guest could overwrite memory in the bhyve process on the host, possibly leading to code execution in the host context. The bhyve process runs in a Capsicum sandbox, which (depending on the FreeBSD version and bhyve configuration) limits the impact of exploiting this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
FreeBSD 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是Freebsd基金会的一套类Unix操作系统。 FreeBSD存在缓冲区错误漏洞，该漏洞源于bhyve（8）虚拟机监控程序中e1000网络适配器的边界错误。远程攻击者利用该漏洞在目标系统上执行任意代码。
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
II. Public POCs for CVE-2022-23087
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Same Patch Batch · FreeBSD · 2024-02-15 · 12 CVEs total
| CVE-2022-23084 | Potential jail escape vulnerabilities in netmap | |
| CVE-2022-23085 | Potential jail escape vulnerabilities in netmap | |
| CVE-2022-23086 | mpr/mps/mpt driver ioctl heap out-of-bounds write | |
| CVE-2022-23088 | 802.11 heap buffer overflow | |
| CVE-2022-23089 | Out of bound read in elf_note_prpsinfo() | |
| CVE-2022-23090 | AIO credential reference count leak | |
| CVE-2022-23091 | Memory disclosure by stale virtual memory mapping | |
| CVE-2022-23092 | Missing bounds check in 9p message handling | |
| CVE-2022-23093 | Stack overflow in ping(8) | |
| CVE-2024-25940 | bhyveload(8) host file access | |
| CVE-2024-25941 | jail(2) information leak |
IV. Related Vulnerabilities
V. Comments for CVE-2022-23087
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