Vulnerability Details : CVE-2019-9162
Potential exploit
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.
Vulnerability category: Memory CorruptionGain privilege
Products affected by CVE-2019-9162
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-9162
0.46%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 63 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-9162
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2019-9162
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9162
-
https://security.netapp.com/advisory/ntap-20190327-0002/
March 2019 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc
kernel/git/torvalds/linux.git - Linux kernel source treeMailing List;Patch;Vendor Advisory
-
https://github.com/torvalds/linux/commit/c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc
netfilter: nf_nat_snmp_basic: add missing length checks in ASN.1 cbs · torvalds/linux@c4c07b4 · GitHubPatch;Third Party Advisory
-
https://usn.ubuntu.com/3930-1/
USN-3930-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://support.f5.com/csp/article/K31864522
Third Party Advisory
-
https://www.exploit-db.com/exploits/46477/
Linux < 4.14.103 / < 4.19.25 - Out-of-Bounds Read and Write in SNMP NAT ModuleExploit;Patch;Third Party Advisory;VDB Entry
-
https://bugs.chromium.org/p/project-zero/issues/detail?id=1776
1776 - Linux: out-of-bounds read and write in SNMP NAT module - project-zero - MonorailIssue Tracking;Exploit;Mailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/107159
Linux Kernel CVE-2019-9162 Local Privilege Escalation VulnerabilityBroken Link
-
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.12
Mailing List;Vendor Advisory
-
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.25
Mailing List;Vendor Advisory
-
https://usn.ubuntu.com/3930-2/
USN-3930-2: Linux kernel (HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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