CVE-2015-5156: linux linux_kernel
Vulnerability summary
CVE-2015-5156 is a medium (CVSS 6.1) vulnerability in linux linux_kernel. EPSS estimates a 1.03% chance of exploitation in the next 30 days, higher than 63.6% of scored vulnerabilities.
Not severe (CVSS 6.1, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 8Timeline
- 19-10-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
1.03%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
Decrease -0.14 pp
From 1.16% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: adjacent network, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu20 products
- linux< 3.13.0-66.108
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Debian1 product
- linux< 4.1.5-1
Linux1 product
- linux_kernel≤ 4.1.10
3 vendors · 22 products
References
29 links
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlX Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlX Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2015-November/171454.htmlVendor AdvisoryX Refsource FEDORA
- git.kernel.org/cgit/…X Refsource CONFIRM
- github.com/torvalds/linux/commit/48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39X Refsource CONFIRM
Show all 29 references
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlX Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=1243852X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2015-October/169378.htmlVendor AdvisoryX Refsource FEDORA