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Vulnerability record · CVE-2019-9162 · published 25 February 2019

CVE-2019-9162: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

In the Linux kernel before 4.20.12, net/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module has insufficient ASN.1 length checks (aka an array index error), making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmp_version and snmp_helper.

7.8 CVSS 3.1 High EPSS 1.1% · top 35.3% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score, v2 4.6
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
22References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

In the Linux kernel before 4.20.12, net/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module has insufficient ASN.1 length checks (aka an array index error), making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmp_version and snmp_helper.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc Mailing ListPatchVendor Advisory
http://www.securityfocus.com/bid/107159 Broken Link
https://bugs.chromium.org/p/project-zero/issues/detail?id=1776 ExploitIssue TrackingMailing ListThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.25 Mailing ListVendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.12 Mailing ListVendor Advisory
https://github.com/torvalds/linux/commit/c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20190327-0002/ Third Party Advisory
https://support.f5.com/csp/article/K31864522 Third Party Advisory
https://usn.ubuntu.com/3930-1/ Third Party Advisory
https://usn.ubuntu.com/3930-2/ Third Party Advisory
https://www.exploit-db.com/exploits/46477/ ExploitPatchThird Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc Mailing ListPatchVendor Advisory
http://www.securityfocus.com/bid/107159 Broken Link
https://bugs.chromium.org/p/project-zero/issues/detail?id=1776 ExploitIssue TrackingMailing ListThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.25 Mailing ListVendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.12 Mailing ListVendor Advisory
https://github.com/torvalds/linux/commit/c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20190327-0002/ Third Party Advisory
https://support.f5.com/csp/article/K31864522 Third Party Advisory
https://usn.ubuntu.com/3930-1/ Third Party Advisory
https://usn.ubuntu.com/3930-2/ Third Party Advisory
https://www.exploit-db.com/exploits/46477/ ExploitPatchThird Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2019-9162), CISA KEV, FIRST EPSS (scores of 2026-10-14). This page is refreshed as NVD updates the record.