What’s Vulnerable › Vulnerabilities

CVE-2019-9162

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-02-25 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Canonical Ubuntu Linux: 18.04, 18.10
• Linux kernel: from 4.19 before 4.19.25; from 4.20 before 4.20.12 — fixed in 4.19.25, 4.20.12
• NetApp Cn1610 Firmware: all versions
• NetApp Hci Management Node: all versions
• NetApp Snapprotect: all versions
• NetApp Solidfire: all versions

How to fix

Upgrade to a fixed version: Linux kernel 4.19.25, 4.20.12. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc
• http://www.securityfocus.com/bid/107159
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1776
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.25
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.12
• https://github.com/torvalds/linux/commit/c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc
• https://security.netapp.com/advisory/ntap-20190327-0002/
• https://support.f5.com/csp/article/K31864522
• https://usn.ubuntu.com/3930-1/
• https://usn.ubuntu.com/3930-2/
• https://www.exploit-db.com/exploits/46477/
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc

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