---
cve: "CVE-2016-9793"
severity: "LOW"
cvss: 3.1
epss: "1.6%"
vendor: "n/a"
kev: false
exploited: false
published: "2016-12-28 07:59:00"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-14T02:52:44+02:00"
---

# CVE-2016-9793

> 3.1 LOW · 🧪 PoC

## Beschreibung

The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.

## Exploit-Evidenz

- [EDB-41995 — Linux Kernel 3.11 < 4.8 0 - 'SO_SNDBUFFORCE' / 'SO_RCVBUFFORCE' Local Privilege Escalation](https://www.exploit-db.com/exploits/41995)

## Referenzen

- <https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290>
- <http://www.securitytracker.com/id/1037968>
- <http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290>
- <https://access.redhat.com/errata/RHSA-2017:0932>
- <https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793>
- <http://www.securityfocus.com/bid/94655>
- <http://www.openwall.com/lists/oss-security/2016/12/03/1>
- <http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14>
- <https://access.redhat.com/errata/RHSA-2017:0933>
- <https://access.redhat.com/errata/RHSA-2017:0931>
- <https://source.android.com/security/bulletin/2017-03-01.html>
- <https://bugzilla.redhat.com/show_bug.cgi?id=1402013>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2016-9793) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_