CVE-2016-2550
Summary
| CVE | CVE-2016-2550 |
|---|---|
| State | PUBLISHED |
| Assigner | debian |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-04-27 17:59:19 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | The Linux kernel before 4.5 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by leveraging incorrect tracking of descriptor ownership and sending each descriptor over a UNIX socket before closing it. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-4312. |
Risk And Classification
Primary CVSS: v3.0 5.5 MEDIUM from [email protected]
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Problem Types: CWE-399 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 5.5 | MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
CVSS v3.0 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
CompleteAV:L/AC:L/Au:N/C:N/I:N/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| USN-2947-2: Linux kernel (Wily HWE) vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| USN-2949-1: Linux kernel (Vivid HWE) vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| kernel/git/torvalds/linux.git - Linux kernel source tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Vendor Advisory |
| USN-2947-1: Linux kernel vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| USN-2946-1: Linux kernel vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Debian -- Security Information -- DSA-3503-1 linux | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | |
| USN-2947-3: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| USN-2948-2: Linux kernel (Utopic HWE) regression | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Oracle Critical Patch Update - January 2018 | af854a3a-2127-422b-91ae-364da2661108 | www.oracle.com | |
| USN-2946-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| unix: correctly track in-flight fds in sending process user_struct · torvalds/linux@415e3d3 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch, Vendor Advisory |
| oss-security - CVE Request: Linux: unix: correctly track in-flight fds in sending process user_struct sockets | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| USN-2948-1: Linux kernel (Utopic HWE) vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Bug 1311517 – CVE-2016-2550 kernel: incorrectly accounted in-flight fds | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.