glibc: Buffer overflow in __mempcpy_avx512_no_vzeroupper
Published May 18, 2018
7.8
HIGHCVSS 3.1
EPSS 0.88%
Description
An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.
Affected products
No data.
Configuration 2
- 4.0
- 7.0
- 7.0
- 7.0
Configuration 3
- 8.0.0
- 8.1.0
- 8.2.0
- 3.0.0
- 3.1.0
Configuration 4
- n/a
- n/a
Configuration 5
- 16.04
- 18.04
- 19.10
No data.
Red Hat Enterprise Linux 7
glibc-0:2.17-260.el7
Fixed · RHSA-2018:3092
Red Hat Enterprise Linux 5
compat-glibc
Not affected
Red Hat Enterprise Linux 5
glibc
Not affected
Red Hat Enterprise Linux 6
compat-glibc
Not affected
Red Hat Enterprise Linux 6
glibc
Not affected
Red Hat Enterprise Linux 7
compat-glibc
Not affected
Red Hat Enterprise Linux 8
glibc
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | glibc-0:2.17-260.el7 | Fixed | RHSA-2018:3092 |
| Red Hat Enterprise Linux 5 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 5 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 8 | glibc | 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:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.88% (0.00880) | 57.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.86% (0.00858) | 53.52th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.63% (0.00627) | 67.79th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.79% (0.01787) | 71.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.63% (0.00627) | 68.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00055) | 24.85th | v3 (v2023.03.01) |
| Jul 17, 2024 | 0.06% (0.00055) | 23.36th | v3 (v2023.03.01) |
| Apr 11, 2024 | 0.06% (0.00055) | 21.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00053) | 19.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.07% (0.02069) | 50.36th | v1 |
| Jan 6, 2022 | 2.07% (0.02069) | 49.86th | v1 |
| Sep 1, 2021 | 2.07% (0.02069) | 77.27th | v1 |
| Apr 14, 2021 | 2.07% (0.02069) | 0.00th | v1 |
References (13)
- http://www.securityfocus.com/bid/104256 vdb-entryx_refsource_BIDBroken Link
- https://access.redhat.com/errata/RHBA-2019:0327 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3092 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-11237 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1581274 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-11237
- https://security.netapp.com/advisory/ntap-20190329-0001/ x_refsource_CONFIRMBroken Link
- https://security.netapp.com/advisory/ntap-20190401-0001/ x_refsource_CONFIRMThird Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=23196 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://usn.ubuntu.com/4416-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-11237
- https://www.exploit-db.com/exploits/44750/ exploitx_refsource_EXPLOIT-DBBroken LinkThird Party AdvisoryVDB Entry
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html x_refsource_MISCPatchThird Party Advisory
Change history (0)
No recorded changes yet.