CVE-2017-7308

Exp

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 update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-7308 is rated High Exploit Risk (81.7/100): CVSS High severity, with high exploitation likelihood (EPSS 87.00%, 99th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-7308

EDB-ID Source Kind Published Link
47168 exploit_db edb 2018-12-29 Exploit-DB ↗
44654 exploit_db edb 2018-05-18 Exploit-DB ↗
41994 exploit_db edb 2017-05-11 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-7308

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-01 86.34% 87.00% +0.66%
2 2026-03-19 86.12% 86.34% +0.22%
3 2026-03-07 — 86.12% —

Full EPSS history (55 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-7308

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2017-7308

OS Trackers for CVE-2017-7308

vendor priority summary link
debian not yet assigned CVE-2017-7308 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-7308
redhat high — https://access.redhat.com/security/cve/CVE-2017-7308
suse medium CVE-2017-7308 severity moderate: SUSE including 244 source package names (cluster-md-kmp-default-4.4.59-92.17.3, cluster-md-kmp-rt-4.4.74-7.10.1, …), 590 product×package rows across 81 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (81 product lines)): Fixed 355, Known Not Affected 235. https://www.suse.com/security/cve/CVE-2017-7308/
ubuntu high CVE-2017-7308 high priority: Ubuntu including 32 source packages (linux, linux-armadaxp, …), 216 status rows across 7 suites (artful, precise, trusty, upstream, xenial, yakkety, zesty): DNE 145, released 49, ignored 11, not-affected 11. https://ubuntu.com/security/CVE-2017-7308

Affected software / configurations for CVE-2017-7308

Vendor Product Version Raw CPE
linux linux_kernel >= 2.6.27, < 3.2.89 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.3, < 3.10.107 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.11, < 3.12.74 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.13, < 3.16.44 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.17, < 3.18.52 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.19, < 4.1.41 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.2, < 4.4.66 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.5, < 4.9.26 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.10, < 4.10.14 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References for CVE-2017-7308

URL Tags
http://www.securityfocus.com/bid/97234 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1297 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1298 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1308 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1854 Third Party Advisory
https://googleprojectzero.blogspot.com/2017/05/exploiting-linux-kernel-via-packet.html Third Party Advisory
https://patchwork.ozlabs.org/patch/744811/ Third Party Advisory
https://patchwork.ozlabs.org/patch/744812/ Third Party Advisory
https://patchwork.ozlabs.org/patch/744813/ Third Party Advisory
https://source.android.com/security/bulletin/2017-07-01 Third Party Advisory
https://www.exploit-db.com/exploits/41994/ Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/44654/ Third Party Advisory VDB Entry
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