binutils: NULL pointer dereference in elf_link_input_bfd in elflink.c
Published Oct 23, 2018
5.5
MEDIUMCVSS 3.0
EPSS 2.32%
Description
An issue was discovered in elf_link_input_bfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.
Affected products
No data.
Configuration 2
- 7.0
- 8.0
- 9.0
Configuration 3
- n/a
No data.
Red Hat Enterprise Linux 5
binutils
Will not fix
Red Hat Enterprise Linux 5
binutils220
Will not fix
Red Hat Enterprise Linux 6
binutils
Will not fix
Red Hat Enterprise Linux 7
binutils
Will not fix
Red Hat Enterprise Linux 8
binutils
Will not fix
Red Hat Enterprise Linux 8
mingw-binutils
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | binutils | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | binutils220 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | binutils | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | binutils | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | binutils | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | mingw-binutils | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat has determined this flaw to be of low impact as successful exploitation results in a crash (denial of service) of the application utilizing the binutils library and does not impact system-wide stability or lead to arbitrary code execution or memory corruption.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/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:L/PR:N/UI:R/S:U/C:N/I:N/A:L
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 v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.32% (0.02320) | 82.84th | v5 (v2026.06.15) |
| Sep 22, 2026 | 2.32% (0.02320) | 82.71th | v5 (v2026.06.15) |
| Sep 21, 2026 | 3.99% (0.03989) | 90.08th | v5 (v2026.06.15) |
| Sep 6, 2026 | 2.32% (0.02320) | 82.34th | v5 (v2026.06.15) |
| Sep 5, 2026 | 3.99% (0.03989) | 89.85th | v5 (v2026.06.15) |
| Aug 30, 2026 | 2.32% (0.02320) | 82.25th | v5 (v2026.06.15) |
| Aug 28, 2026 | 3.99% (0.03989) | 89.79th | v5 (v2026.06.15) |
| Aug 24, 2026 | 2.32% (0.02320) | 82.15th | v5 (v2026.06.15) |
| Aug 23, 2026 | 3.99% (0.03989) | 89.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.24% (0.02239) | 80.47th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.52% (0.00517) | 64.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.39% (0.00394) | 74.26th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.39% (0.00394) | 73.43th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.52% (0.00515) | 76.19th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.36% (0.00363) | 71.55th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.36% (0.00363) | 69.21th | v3 (v2023.03.01) |
| Oct 17, 2023 | 0.20% (0.00204) | 57.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.17% (0.00171) | 52.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.58% (0.02580) | 55.23th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.58% (0.02580) | 0.00th | v1 |
References (11)
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/105754 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-18607 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1647421 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-18607
- https://security.netapp.com/advisory/ntap-20190307-0003/ x_refsource_CONFIRMThird Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=23805 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=102def4da826b3d9e169741421e5e67e8731909a x_refsource_MISC
- https://usn.ubuntu.com/4336-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2018-18607
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html | vendor-advisoryx_refsource_SUSE | |
| http://www.securityfocus.com/bid/105754 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-18607 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1647421 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-18607 | ||
| https://security.netapp.com/advisory/ntap-20190307-0003/ | x_refsource_CONFIRMThird Party Advisory | |
| https://sourceware.org/bugzilla/show_bug.cgi?id=23805 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=102def4da826b3d9e169741421e5e67e8731909a | x_refsource_MISC | |
| https://usn.ubuntu.com/4336-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2018-18607 |
Change history (0)
No recorded changes yet.