Path Traversal in Freebsd
CVE-2017-1087
In FreeBSD 10.x before 10.4-STABLE, 10.4-RELEASE-p3, and 10.3-RELEASE-p24 named paths are globally scoped, meaning a process located in one jail can read and modify the content of POSIX shared memory objects created by a process in another jail or the host system. As a result, a malicious user that has access to a jailed system is able to abuse shared memory by injecting malicious content in the shared memory region. This memory region might be executed by applications trusting the shared memory, like Squid. This issue could lead to a Denial of Service or local privilege escalation.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.004 (34.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Freebsd — versions FreeBSD 10.x
Weakness classification (CWE)
References
- secteam@freebsd.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secteam@freebsd.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- secteam@freebsd.org (x_refsource_FREEBSD, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-1087?
- CVE-2017-1087 is a high-severity vulnerability in Freebsd, classified under Path Traversal. CVSS score: 7.8/10. Published 2017-11-16.
- How severe is CVE-2017-1087?
- High severity. CVSS v3 base score is 7.8 out of 10.