CVE-2019-3846 json
A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting…
published 2019-06-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-13466
- cvss
- 8.0
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.9%
- EPSS 5.9% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network.
Patch / fix
- linux linux_kernel 3.16.70, 4.4.186, 4.9.186, 4.14.134, 4.19.59, 5.1.18
- linux Debian 14, Debian 13, Debian 12 4.19.37-4
debian advisories DEBIAN-CVE-2019-3846
- linux Ubuntu 16.04 LTS 4.4.0-159.187
- linux Ubuntu 18.04 LTS 4.15.0-58.64
- linux-aws Ubuntu 16.04 LTS 4.4.0-1090.101
- linux-aws Ubuntu 18.04 LTS 4.15.0-1047.49
- linux-gcp Ubuntu 16.04 LTS 4.15.0-1040.42~16.04.1
- linux-gcp Ubuntu 18.04 LTS 4.15.0-1040.42
- linux-hwe Ubuntu 16.04 LTS 4.15.0-58.64~16.04.1
- linux-hwe Ubuntu 18.04 LTS 5.0.0-25.26~18.04.1
ubuntu advisories UBUNTU-CVE-2019-3846
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel-alt RHEL 7 4.14.0-115.17.1.el7a
- perf RHEL 7 4.14.0-115.17.1.el7a
- kernel RHEL 7 4.14.0-115.17.1.el7a
- python-perf RHEL 7 4.14.0-115.17.1.el7a
- kernel-tools RHEL 7 4.14.0-115.17.1.el7a
- kernel-tools-libs RHEL 7 4.14.0-115.17.1.el7a
- kernel-bootwrapper RHEL 7 4.14.0-115.17.1.el7a
- kernel-abi-whitelists RHEL 7 4.14.0-115.17.1.el7a
red hat advisories RHSA-2020:0174RHSA-2019:2703RHSA-2020:2289RHSA-2019:3055RHSA-2019:3076RHSA-2019:3089
- kernel-rt SLE Real Time 12 SP4 4.12.14-8.3.1
- kernel-syms-rt SLE Real Time 12 SP4 4.12.14-8.3.1
- kernel-rt_debug SLE Real Time 12 SP4 4.12.14-8.3.1
- kernel-source-rt SLE Real Time 12 SP4 4.12.14-8.3.1
- kernel-source-rt Real Time Module 15 SP1 4.12.14-14.8.1
- kernel-rt Real Time Module 15 SP1 4.12.14-14.8.1
- kernel-syms-rt Real Time Module 15 SP1 4.12.14-14.8.1
- kernel-rt_debug Real Time Module 15 SP1 4.12.14-14.8.1
suse advisories SUSE-SU-2019:2821-1SUSE-SU-2019:2450-1SUSE-SU-2019:2430-1SUSE-SU-2019:1948-1SUSE-SU-2019:14127-1SUSE-SU-2019:1882-1
- kernel-source openSUSE Tumbleweed 5.14.6-1.4
- kernel-source openSUSE Tumbleweed 6.6.17-1.1
- kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.64.1
- kernel-obs-qa openSUSE Leap 15.0 4.12.14-lp150.12.64.1
- kernel-source openSUSE Leap 15.0 4.12.14-lp150.12.64.1
- kernel-default openSUSE Leap 15.0 4.12.14-lp150.12.64.1
- kernel-vanilla openSUSE Leap 15.0 4.12.14-lp150.12.64.1
- kernel-kvmsmall openSUSE Leap 15.0 4.12.14-lp150.12.64.1
opensuse advisories openSUSE-SU-2024:10728-1openSUSE-SU-2024:13704-1openSUSE-SU-2019:1579-1openSUSE-SU-2019:1571-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2019-3846 updated cvss 8.0
kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c
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Red Hat Enterprise Linux 5 kernelaffected: workaround, no fix planned “Out of support scope”
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Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-80.11.1.el8_0, kernel-debuginfo-common-aarch64 4.18.0-80.11.1.el8_0, kernel-debuginfo-common-ppc64le 4.18.0-80.11.1.el8_0 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-80.11.1.el8_0, kernel 4.18.0-80.11.1.el8_0, bpftool 4.18.0-80.11.1.el8_0, kernel-core 4.18.0-80.11.1.el8_0, kernel-tools 4.18.0-80.11.1.el8_0, python3-perf 4.18.0-80.11.1.el8_0, +15 morefixed: vendor fix RHSA-2019:2703
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Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1062.4.1.el7, kernel 3.10.0-1062.4.1.el7, bpftool 3.10.0-1062.4.1.el7, python-perf 3.10.0-1062.4.1.el7, kernel-tools 3.10.0-1062.4.1.el7, kernel-tools-libs 3.10.0-1062.4.1.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.4.1.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1062.4.1.el7, kernel 3.10.0-1062.4.1.el7, bpftool 3.10.0-1062.4.1.el7, python-perf 3.10.0-1062.4.1.el7, kernel-tools 3.10.0-1062.4.1.el7, kernel-tools-libs 3.10.0-1062.4.1.el7, +2 morefixed: vendor fix RHSA-2019:3055
-
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) perf 3.10.0-957.54.1.el7, kernel 3.10.0-957.54.1.el7, bpftool 3.10.0-957.54.1.el7, python-perf 3.10.0-957.54.1.el7, kernel-tools 3.10.0-957.54.1.el7, kernel-tools-libs 3.10.0-957.54.1.el7, +2 morefixed: vendor fix RHSA-2020:2289
-
Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.4.1.el7fixed: vendor fix RHSA-2019:3055
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Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.54.1.el7fixed: vendor fix RHSA-2020:2289
-
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.17.1.el7a, kernel 4.14.0-115.17.1.el7a, kernel-alt 4.14.0-115.17.1.el7a, python-perf 4.14.0-115.17.1.el7a, kernel-tools 4.14.0-115.17.1.el7a, kernel-tools-libs 4.14.0-115.17.1.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.17.1.el7afixed: vendor fix RHSA-2020:0174
-
Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1062.4.1.rt56.1027.el7, kernel-rt-kvm 3.10.0-1062.4.1.rt56.1027.el7, kernel-rt-trace 3.10.0-1062.4.1.rt56.1027.el7, kernel-rt-debug-kvm 3.10.0-1062.4.1.rt56.1027.el7, kernel-rt-trace-kvm 3.10.0-1062.4.1.rt56.1027.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.4.1.rt56.1027.el7fixed: vendor fix RHSA-2019:3089
show 9 moreshow fewer
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Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-core 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-modules 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-debug-core 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-debug-modules 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-modules-extra 4.18.0-80.11.1.rt9.156.el8_0, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-kvm 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-core 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-modules 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-debug-kvm 4.18.0-80.11.1.rt9.156.el8_0, kernel-rt-debug-core 4.18.0-80.11.1.rt9.156.el8_0, +4 morefixed: vendor fix RHSA-2019:2741
-
Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-1062.4.1.rt56.1027.el7, kernel-rt-trace 3.10.0-1062.4.1.rt56.1027.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.4.1.rt56.1027.el7fixed: vendor fix RHSA-2019:3089
-
Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1062.4.1.el7, kernel 3.10.0-1062.4.1.el7, bpftool 3.10.0-1062.4.1.el7, python-perf 3.10.0-1062.4.1.el7, kernel-kdump 3.10.0-1062.4.1.el7, kernel-tools 3.10.0-1062.4.1.el7, +10 morefixed: vendor fix RHSA-2019:3055
-
Red Hat Enterprise Linux Server EUS (v. 7.6) perf 3.10.0-957.54.1.el7, kernel 3.10.0-957.54.1.el7, bpftool 3.10.0-957.54.1.el7, python-perf 3.10.0-957.54.1.el7, kernel-kdump 3.10.0-957.54.1.el7, kernel-tools 3.10.0-957.54.1.el7, +7 morefixed: vendor fix RHSA-2020:2289
-
Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1062.4.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.4.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.4.1.el7fixed: vendor fix RHSA-2019:3055
-
Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debuginfo-common-ppc64 3.10.0-957.54.1.el7, kernel-debuginfo-common-x86_64 3.10.0-957.54.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.54.1.el7fixed: vendor fix RHSA-2020:2289
-
Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1062.4.1.el7, kernel 3.10.0-1062.4.1.el7, bpftool 3.10.0-1062.4.1.el7, python-perf 3.10.0-1062.4.1.el7, kernel-tools 3.10.0-1062.4.1.el7, kernel-tools-libs 3.10.0-1062.4.1.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.4.1.el7fixed: vendor fix RHSA-2019:3055
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Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS perf 3.10.0-957.54.1.el7, python-perf 3.10.0-957.54.1.el7fixed: vendor fix RHSA-2020:2289
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Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmwarenot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
5.88% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- seclists.org https://seclists.org/oss-sec/2019/q2/133 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 8.0 | CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 8.3 | AV:A/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- n/a kernel
Classification
- Weakness
- Technology feeds
References
-
bugzilla.redhat.com
/show_bug.cgi?id=CVE-2019-3846
issue-tracking, mitigation, patch, third-party-advisory
-
seclists.org
/bugtraq/2019/Jul/33
mailing-list, patch, third-party-advisory
-
seclists.org
/oss-sec/2019/q2/133
exploit, mailing-list, third-party-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/KLGWJKLMTBBB53D5QLS4HOY2EH246WBE/
vendor-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/
vendor-advisory
-
debian.org
/security/2019/dsa-4465
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2019-06/msg00039.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2019-06/msg00040.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2019-06/msg00048.html
vendor-advisory, mailing-list, third-party-advisory
-
usn.ubuntu.com
/4093-1/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4094-1/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4095-2/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4095-1/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4117-1/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4118-1/
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:2703
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:2741
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:3076
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:3055
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:3089
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2020:0174
vendor-advisory, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/06/msg00010.html
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/06/msg00011.html
mailing-list, third-party-advisory
-
seclists.org
/bugtraq/2019/Jun/26
mailing-list, third-party-advisory
-
security.netapp.com
/advisory/ntap-20190710-0002/
third-party-advisory
-
packetstormsecurity.com
/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
third-party-advisory, vdb-entry
-
packetstormsecurity.com
/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
third-party-advisory, vdb-entry
-
packetstormsecurity.com
/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2019-3846
- NVD CVE-2019-3846
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.