libiberty: heap-based buffer over-read in d_expression_1
Published Jan 15, 2019
6.5
MEDIUMCVSS 3.0
EPSS 2.69%
Description
A heap-based buffer over-read exists in the function d_expression_1 in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils 2.31.1. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by c++filt.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
binutils
Not affected
Red Hat Enterprise Linux 5
gcc
Not affected
Red Hat Enterprise Linux 5
gdb
Not affected
Red Hat Enterprise Linux 6
binutils
Not affected
Red Hat Enterprise Linux 6
gcc
Not affected
Red Hat Enterprise Linux 6
gdb
Not affected
Red Hat Enterprise Linux 7
binutils
Not affected
Red Hat Enterprise Linux 7
gcc
Not affected
Red Hat Enterprise Linux 7
gdb
Not affected
Red Hat Enterprise Linux 8
binutils
Not affected
Red Hat Enterprise Linux 8
gcc
Not affected
Red Hat Enterprise Linux 8
gdb
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | binutils | Not affected | n/a |
| Red Hat Enterprise Linux 5 | gcc | Not affected | n/a |
| Red Hat Enterprise Linux 5 | gdb | Not affected | n/a |
| Red Hat Enterprise Linux 6 | binutils | Not affected | n/a |
| Red Hat Enterprise Linux 6 | gcc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | gdb | Not affected | n/a |
| Red Hat Enterprise Linux 7 | binutils | Not affected | n/a |
| Red Hat Enterprise Linux 7 | gcc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | gdb | Not affected | n/a |
| Red Hat Enterprise Linux 8 | binutils | Not affected | n/a |
| Red Hat Enterprise Linux 8 | gcc | Not affected | n/a |
| Red Hat Enterprise Linux 8 | gdb | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.69% (0.02685) | 85.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.66% (0.02663) | 83.69th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.07% (0.01070) | 75.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.35% (0.03354) | 78.70th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.11% (0.00112) | 45.04th | v3 (v2023.03.01) |
| Jun 7, 2024 | 0.11% (0.00112) | 44.62th | v3 (v2023.03.01) |
| Jan 8, 2024 | 0.16% (0.00161) | 52.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00192) | 54.96th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v1 |
| Jan 6, 2022 | 1.04% (0.01040) | 27.69th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (8)
- http://www.securityfocus.com/bid/106563 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-20712 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1668269 Issue Tracking
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88629 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-20712
- https://sourceware.org/bugzilla/show_bug.cgi?id=24043 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://support.f5.com/csp/article/K38336243 x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-20712
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106563 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-20712 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1668269 | Issue Tracking | |
| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88629 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-20712 | ||
| https://sourceware.org/bugzilla/show_bug.cgi?id=24043 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://support.f5.com/csp/article/K38336243 | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-20712 |
Change history (0)
No recorded changes yet.