What is CVE-2017-7308?

CVE-2017-7308 is a high-severity vulnerability in Linux Kernel, classified under Incorrect Conversion between Numeric Types. CVSS score: 7.8/10. Published 2017-03-29.

How severe is CVE-2017-7308?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2017-7308 known to be exploited?

91 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Linux Kernel

CVE-2017-7308

The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (integer signedness error and out-of-bounds write), or gain privileges (if the CAP_NET_RAW capability is held), via crafted system calls.

Published 2017-03-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.178 (97.1th percentile), scored 2026-10-19.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.178 · newest: 0.178 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

Public proof-of-concept exploits

References

access.redhat.com/errata/RHSA-2017:1308 (vendor-advisory, Third Party Advisory)
googleprojectzero.blogspot.com/2017/05/exploiting-linux-kernel-via-packet.html (Third Party Advisory)
source.android.com/security/bulletin/2017-07-01 (Third Party Advisory)
access.redhat.com/errata/RHSA-2018:1854 (vendor-advisory, Third Party Advisory)
www.securityfocus.com/bid/97234 (VDB Entry, Third Party Advisory, vdb-entry)
patchwork.ozlabs.org/patch/744812/ (Third Party Advisory)
www.exploit-db.com/exploits/41994/ (VDB Entry, Third Party Advisory, exploit)
patchwork.ozlabs.org/patch/744813/ (Third Party Advisory)
www.exploit-db.com/exploits/44654/ (VDB Entry, Third Party Advisory, exploit)
patchwork.ozlabs.org/patch/744811/ (Third Party Advisory)

Frequently asked questions

What is CVE-2017-7308?: CVE-2017-7308 is a high-severity vulnerability in Linux Kernel, classified under Incorrect Conversion between Numeric Types. CVSS score: 7.8/10. Published 2017-03-29.
How severe is CVE-2017-7308?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2017-7308 known to be exploited?: 91 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.