CVE-2026-101307— Remotely triggerable buffer overflow in tcp_rack
一分钟漏洞结论
影响对象
FreeBSD FreeBSD
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
When the PCM sample array needs to grow, the RACK stack doubles a 16-bit allocation counter. Repeated doublings caused the counter to wrap to zero, resulting in a near-zero-length allocation followed by a copy of the existing samples into the undersized buffer
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一、 漏洞 CVE-2026-101307 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Remotely triggerable buffer overflow in tcp_rack
来源: CVE Program / CVE List V5
Vulnerability Description
When the PCM sample array needs to grow, the RACK stack doubles a 16-bit allocation counter. Repeated doublings caused the counter to wrap to zero, resulting in a near-zero-length allocation followed by a copy of the existing samples into the undersized buffer. A remote peer can trigger the expansion by sending a sufficient number of ACKs on an established connection.
A remote attacker who can establish a TCP connection to a system using the RACK stack can trigger an out-of-bounds write of approximately 512 KB in the kernel heap possibly resulting in a kernel panic.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-101307 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-101307 其他参考 (1)
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https://security.freebsd.org/advisories/FreeBSD-SA-26:70.tcp.asc vendor-advisory
同批安全公告 · FreeBSD · 2026-10-15 · 共 13 条
| CVE-2026-101311 | Multiple vulnerabilities in bhyve device models | |
| CVE-2026-101310 | Multiple vulnerabilities in bhyve device models | |
| CVE-2026-101309 | Multiple vulnerabilities in bhyve device models | |
| CVE-2026-101308 | TOCTOU race between sound(4) buffer resizing and mmap | |
| CVE-2026-101303 | IPv6 UDP sendto(2) bypasses jail loopback restriction | |
| CVE-2026-101302 | Remote DoS via receive-side kernel TLS | |
| CVE-2026-101306 | Multiple jail filesystem root escapes | |
| CVE-2026-101305 | Multiple jail filesystem root escapes | |
| CVE-2026-101304 | Multiple jail filesystem root escapes | |
| CVE-2026-58100 | Memory safety bugs in kqueue copy-on-fork implementation | |
| CVE-2026-58099 | Memory safety bugs in kqueue copy-on-fork implementation | |
| CVE-2026-58098 | Heap out-of-bounds access in semop(2) |
IV. Related Vulnerabilities
Same product: FreeBSD
-
CVE-2026-101311
Multiple vulnerabilities in bhyve device models -
CVE-2026-101310
Multiple vulnerabilities in bhyve device models -
CVE-2026-101309
Multiple vulnerabilities in bhyve device models -
CVE-2026-101308
TOCTOU race between sound(4) buffer resizing and mmap -
CVE-2026-101303
IPv6 UDP sendto(2) bypasses jail loopback restriction
Same vendor: FreeBSD
-
CVE-2026-101311
Multiple vulnerabilities in bhyve device models -
CVE-2026-101310
Multiple vulnerabilities in bhyve device models -
CVE-2026-101309
Multiple vulnerabilities in bhyve device models -
CVE-2026-101308
TOCTOU race between sound(4) buffer resizing and mmap -
CVE-2026-101303
IPv6 UDP sendto(2) bypasses jail loopback restriction
Same weakness: CWE-122
-
CVE-2026-79822
HPE NonStop TNS/X Native Inspect - Execution flow vulnerabil -
CVE-2026-110837
FreeRDP 2.0.0 before 3.32.0 Heap Buffer Overflow via MP3 Aud -
CVE-2026-63626
Mongoose: ppp_handle_ipv6cp() uses attacker-controlled lengt -
CVE-2026-102175
Junos OS and Junos OS Evolved: An attacker causes remote cod -
CVE-2026-102015
Junos OS and Junos OS Evolved: An attacker causes root code
V. Comments for CVE-2026-101307
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