The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Partial Red Hat: 17 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 3 advisories
- RHSA-2016:0855 Released 2016-05-10 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-642.el6, kernel-abi-whitelists-2.6.32-642.el6, kernel-debug-2.6.32-642.el6 +6
- Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-642.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-642.el6, kernel-abi-whitelists-2.6.32-642.el6, kernel-debug-2.6.32-642.el6 +6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-642.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-642.el6, kernel-abi-whitelists-2.6.32-642.el6, kernel-bootwrapper-2.6.32-642.el6 +9
- Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-642.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-642.el6, kernel-abi-whitelists-2.6.32-642.el6, kernel-debug-2.6.32-642.el6 +6
- Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-642.el6
- RHSA-2015:1978 Released 2015-11-03 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-229.20.1.el7, kernel-abi-whitelists-3.10.0-229.20.1.el7, kernel-debug-3.10.0-229.20.1.el7 +7
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.20.1.el7, python-perf-3.10.0-229.20.1.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-229.20.1.el7, kernel-abi-whitelists-3.10.0-229.20.1.el7, kernel-debug-3.10.0-229.20.1.el7 +7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.20.1.el7, python-perf-3.10.0-229.20.1.el7
- Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-229.20.1.ael7b, kernel-3.10.0-229.20.1.el7, kernel-abi-whitelists-3.10.0-229.20.1.ael7b +20
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-229.20.1.ael7b, kernel-tools-libs-devel-3.10.0-229.20.1.ael7b, kernel-tools-libs-devel-3.10.0-229.20.1.el7 +2
- Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-229.20.1.el7, kernel-abi-whitelists-3.10.0-229.20.1.el7, kernel-debug-3.10.0-229.20.1.el7 +7
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.20.1.el7, python-perf-3.10.0-229.20.1.el7
- RHSA-2015:1977 Released 2015-11-03 · Red Hat rating Moderatekernel-rt security, bug fix, and enhancement update
- Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-229.20.1.rt56.141.14.el7_1, kernel-rt-debug-3.10.0-229.20.1.rt56.141.14.el7_1, kernel-rt-debug-devel-3.10.0-229.20.1.rt56.141.14.el7_1 +4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:1978 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:1978 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2015:1978 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2015:1978 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux Realtime (v. 7) | Fixed | RHSA-2015:1977 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:1978 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:1978 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:1978 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2016:0855 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:1978 |
Not affected: 1 product
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2015-5156
- 2026-10-03 Alias added: GHSA-hm78-pq45-736h
References
Advisory 10
Other 6
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39
- https://github.com/torvalds/linux/commit/48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1243852
More Linux Kernel vulnerabilities
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- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2015-5156 · CVE Program
- CVE-2015-5156 · NVD
- FIRST EPSS
- GHSA-hm78-pq45-736h · GitHub Advisory Database · CC BY 4.0
- CVE-2015-5156 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences