kernel: use-after-free in SMB2_write function in fs/cifs/smb2pdu.c
Published Sep 4, 2019
3.3
LOWCVSS 3.1
EPSS 0.43%
Description
An issue was discovered in the Linux kernel before 5.0.10. SMB2_write in fs/cifs/smb2pdu.c has a use-after-free.
Affected products
No data.
No data.
Red Hat Enterprise Linux 8
kernel-0:4.18.0-147.el8
Fixed · RHSA-2019:3517
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-rt
Affected
Red Hat Enterprise MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-147.el8 | Fixed | RHSA-2019:3517 |
| 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-rt | Affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
As the CIFS module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions: # echo "install cifs /bin/true" >> /etc/modprobe.d/disable-cifs.conf The system will need to be restarted if the CIFS modules are loaded. In most circumstances, the CIFS kernel modules will be unable to be unloaded while any network interfaces are active and the protocol is in use. If you need further assistance, see KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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:N/A:N
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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.43% (0.00435) | 35.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.43% (0.00435) | 34.49th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00057) | 14.92th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00079) | 35.92th | v3 (v2023.03.01) |
| May 7, 2024 | 0.05% (0.00047) | 16.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00047) | 14.46th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.67% (0.01669) | 53.27th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.36% (0.05363) | 79.74th | v1 |
| Jan 6, 2022 | 5.36% (0.05363) | 79.54th | v1 |
| Jan 5, 2022 | 1.25% (0.01247) | 69.74th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (9)
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-15919 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1750410 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10 x_refsource_MISCRelease NotesThird Party Advisory
- https://github.com/torvalds/linux/commit/6a3eb3360667170988f8a6477f6686242061488a x_refsource_MISCPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-15919
- https://security.netapp.com/advisory/ntap-20191004-0001/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-15919
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html | vendor-advisoryx_refsource_SUSEThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html | vendor-advisoryx_refsource_SUSEThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2019-15919 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1750410 | Issue Tracking | |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10 | x_refsource_MISCRelease NotesThird Party Advisory | |
| https://github.com/torvalds/linux/commit/6a3eb3360667170988f8a6477f6686242061488a | x_refsource_MISCPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-15919 | ||
| https://security.netapp.com/advisory/ntap-20191004-0001/ | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-15919 |
Change history (0)
No recorded changes yet.