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.
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Google Security Research · textdoslinux
https://www.exploit-db.com/exploits/46477
References (11)
Core 11
Core References
Mailing List, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.25
Exploit, Patch, Third Party Advisory, VDB Entry exploit
x_refsource_exploit-db
https://www.exploit-db.com/exploits/46477/
Mailing List, Patch, Vendor Advisory x_refsource_misc
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc
Mailing List, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.12
Broken Link vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/107159
Patch, Third Party Advisory x_refsource_misc
https://github.com/torvalds/linux/commit/c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc
Exploit, Issue Tracking, Mailing List, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/project-zero/issues/detail?id=1776
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20190327-0002/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3930-1/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3930-2/
Third Party Advisory x_refsource_confirm
https://support.f5.com/csp/article/K31864522
Scores
CVSS v3
7.8
EPSS
0.0021
EPSS Percentile
42.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (7)
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
18.10
linux/linux_kernel
4.19 - 4.19.25
netapp/cn1610_firmware
netapp/hci_management_node
netapp/snapprotect
netapp/solidfire
Published
Feb 25, 2019
Tracked Since
Feb 18, 2026