6.1
MEDIUM
CVE-2015-5156
Virtio Net Guest OS Fragmentation Denial of Service
Description

The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets.

INFO

Published Date :

Oct. 19, 2015, 10:59 a.m.

Last Modified :

Nov. 21, 2024, 2:32 a.m.

Remotely Exploitable :

No

Impact Score :

6.9

Exploitability Score :

6.5
Public PoC/Exploit Available at Github

CVE-2015-5156 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2015-5156 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2015-5156.

URL Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171454.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169378.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html
http://rhn.redhat.com/errata/RHSA-2015-1978.html
http://rhn.redhat.com/errata/RHSA-2016-0855.html
http://www.debian.org/security/2015/dsa-3364
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/76230
http://www.securitytracker.com/id/1034045
http://www.ubuntu.com/usn/USN-2773-1
http://www.ubuntu.com/usn/USN-2774-1
http://www.ubuntu.com/usn/USN-2777-1
https://bugzilla.redhat.com/show_bug.cgi?id=1243852
https://github.com/torvalds/linux/commit/48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171454.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169378.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html
http://rhn.redhat.com/errata/RHSA-2015-1978.html
http://rhn.redhat.com/errata/RHSA-2016-0855.html
http://www.debian.org/security/2015/dsa-3364
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/76230
http://www.securitytracker.com/id/1034045
http://www.ubuntu.com/usn/USN-2773-1
http://www.ubuntu.com/usn/USN-2774-1
http://www.ubuntu.com/usn/USN-2777-1
https://bugzilla.redhat.com/show_bug.cgi?id=1243852
https://github.com/torvalds/linux/commit/48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 3 years, 3 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 23, 2020, 12:17 a.m. This repo has been linked 4 different CVEs too.

None

Python

Updated: 3 weeks, 5 days ago
10 stars 1 fork 1 watcher
Born at : Aug. 30, 2017, 2:37 p.m. This repo has been linked 1269 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2015-5156 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2015-5156 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 12, 2023

    Action Type Old Value New Value
    Changed Description A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets.
    Removed CVSS V2 Red Hat, Inc. (AV:A/AC:H/Au:N/C:C/I:C/A:C)
    Removed Reference https://access.redhat.com/errata/RHSA-2015:1977 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2015:1978 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2016:0855 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2015-5156 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets. A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system.
    Added CVSS V2 Red Hat, Inc. (AV:A/AC:H/Au:N/C:C/I:C/A:C)
    Added Reference https://access.redhat.com/security/cve/CVE-2015-5156 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2015:1978 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2015:1977 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2016:0855 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 04, 2017

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2015/dsa-3364 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 08, 2016

    Action Type Old Value New Value
    Added Reference http://www.ubuntu.com/usn/USN-2774-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2773-1 [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 07, 2016

    Action Type Old Value New Value
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169378.html [No Types Assigned]
    Added Reference http://rhn.redhat.com/errata/RHSA-2015-1978.html [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2777-1 [No Types Assigned]
    Added Reference http://www.securitytracker.com/id/1034045 [No Types Assigned]
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171454.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-0855.html [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/76230 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 15, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
  • CVE Modified by [email protected]

    Oct. 12, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
  • CVE Modified by [email protected]

    Oct. 04, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
  • Modified Analysis by [email protected]

    Oct. 19, 2015

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.1.10:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:A/AC:L/Au:N/C:N/I:N/A:C)
    Added CWE CWE-119
  • Initial Analysis by [email protected]

    Oct. 19, 2015

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.24 }} 0.00%

score

0.60029

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability