kernel: out-of-bounds read/write in et/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module
Published Feb 25, 2019
7.8
HIGHCVSS 3.1
EPSS 1.09%
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
No data.
Configuration 1
- ≥ 4.19 · < 4.19.25
- ≥ 4.20 · < 4.20.12
Configuration 2
- n/a
- n/a
- n/a
Configuration 3
- 18.04
- 18.10
Configuration 4
- n/a
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.09% (0.01092) | 64.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.09% (0.01092) | 60.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.24% (0.00238) | 44.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00063) | 28.92th | v3 (v2023.03.01) |
| May 6, 2024 | 0.06% (0.00063) | 26.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.53% (0.03534) | 84.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.53% (0.03534) | 83.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.82% (0.03821) | 67.27th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.70% (0.05701) | 80.55th | v1 |
| Jan 6, 2022 | 5.70% (0.05701) | 80.35th | v1 |
| Sep 1, 2021 | 5.70% (0.05701) | 89.01th | v1 |
| Apr 14, 2021 | 5.70% (0.05701) | 0.00th | v1 |
References (16)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc x_refsource_MISCMailing ListPatchVendor Advisory
- http://www.securityfocus.com/bid/107159 vdb-entryx_refsource_BIDBroken Link
- https://access.redhat.com/security/cve/CVE-2019-9162 Vendor Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1776 x_refsource_MISCExploitIssue TrackingMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1683191 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.25 x_refsource_MISCMailing ListVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.12 x_refsource_MISCMailing ListVendor Advisory
- https://github.com/torvalds/linux/commit/c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc x_refsource_MISCPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-9162
- https://seclists.org/oss-sec/2019/q1/166
- https://security.netapp.com/advisory/ntap-20190327-0002/ x_refsource_CONFIRMThird Party Advisory
- https://support.f5.com/csp/article/K31864522 x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/3930-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3930-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-9162
- https://www.exploit-db.com/exploits/46477/ exploitx_refsource_EXPLOIT-DBPatchThird Party AdvisoryVDB Entry
Change history (0)
No recorded changes yet.