CVE-2017-1087
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.41% probability · 36th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- freebsd/freebsd
- Source
- secteam@freebsd.org
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/101867Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039810Third Party Advisory, VDB Entry
- https://www.freebsd.org/security/advisories/FreeBSD-SA-17:09.shm.ascVendor Advisory
- http://www.securityfocus.com/bid/101867Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039810Third Party Advisory, VDB Entry
- https://www.freebsd.org/security/advisories/FreeBSD-SA-17:09.shm.ascVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.