CVE-2019-5606
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。pts是使用在其中的一个伪终端驱动程序。 FreeBSD pts中存在安全漏洞。攻击者可利用该漏洞造成拒绝服务并可能运行代码。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2019-5606
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In FreeBSD 12.0-STABLE before r349805, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r349806, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, code which handles close of a descriptor created by posix_openpt fails to undo a signal configuration. This causes an incorrect signal to be raised leading to a write after free of kernel memory allowing a malicious user to gain root privileges or escape a jail.
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 pts 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是FreeBSD基金会的一套类Unix操作系统。pts是使用在其中的一个伪终端驱动程序。 FreeBSD pts中存在安全漏洞。攻击者可利用该漏洞造成拒绝服务并可能运行代码。
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-2019-5606
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-5606 (1)
-
https://security.netapp.com/advisory/ntap-20190814-0003/ x_refsource_CONFIRM
Exploits & Public PoCs for CVE-2019-5606 (1)
Other References for CVE-2019-5606 (1)
-
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc vendor-advisory x_refsource_FREEBSD
Same Patch Batch · FreeBSD · 2019-07-26 · 5 CVEs total
| CVE-2019-5605 | FreeBSD freebsd32 信息泄露漏洞 | |
| CVE-2019-5603 | FreeBSD mqueuefs 权限许可和访问控制问题漏洞 | |
| CVE-2019-5604 | FreeBSD 缓冲区错误漏洞 | |
| CVE-2019-5607 | FreeBSD 权限许可和访问控制问题漏洞 |
IV. Related Vulnerabilities
Same product: FreeBSD
-
CVE-2026-58094
TOCTOU race in POSIX shared memory large page configuration -
CVE-2026-58093
Kernel use-after-free via tty ioctls -
CVE-2026-58097
ppp(8): missing length validation in mp_SetEnddisc() -
CVE-2026-58096
ppp(8): missing length validation in LcpDecodeConfig() -
CVE-2026-58095
ppp(8): incorrect length calculation in mp_Enddisc()
Same vendor: FreeBSD
-
CVE-2026-58094
TOCTOU race in POSIX shared memory large page configuration -
CVE-2026-58093
Kernel use-after-free via tty ioctls -
CVE-2026-58097
ppp(8): missing length validation in mp_SetEnddisc() -
CVE-2026-58096
ppp(8): missing length validation in LcpDecodeConfig() -
CVE-2026-58095
ppp(8): incorrect length calculation in mp_Enddisc()
V. Comments for CVE-2019-5606
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