binutils: invalid memory address dereference in read_reloc in reloc.c
Published Oct 15, 2018
5.5
MEDIUMCVSS 3.0
EPSS 1.82%
Description
An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
binutils
Not affected
Red Hat Enterprise Linux 5
binutils220
Not affected
Red Hat Enterprise Linux 6
binutils
Not affected
Red Hat Enterprise Linux 7
binutils
Not affected
Red Hat Enterprise Linux 8
binutils
Will not fix
Red Hat Enterprise Linux 8
mingw-binutils
Will not fix
Red Hat OpenShift Enterprise 3
binutils
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | binutils | Not affected | n/a |
| Red Hat Enterprise Linux 5 | binutils220 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | binutils | Not affected | n/a |
| Red Hat Enterprise Linux 7 | binutils | Not affected | 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 |
| Red Hat OpenShift Enterprise 3 | binutils | Not affected | 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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.82% (0.01820) | 77.96th | v5 (v2026.06.15) |
| Sep 22, 2026 | 1.82% (0.01820) | 77.80th | v5 (v2026.06.15) |
| Sep 21, 2026 | 3.02% (0.03021) | 86.81th | v5 (v2026.06.15) |
| Sep 6, 2026 | 1.82% (0.01820) | 77.31th | v5 (v2026.06.15) |
| Sep 5, 2026 | 3.02% (0.03021) | 86.53th | v5 (v2026.06.15) |
| Aug 30, 2026 | 1.82% (0.01820) | 77.20th | v5 (v2026.06.15) |
| Aug 28, 2026 | 3.02% (0.03021) | 86.45th | v5 (v2026.06.15) |
| Aug 24, 2026 | 1.82% (0.01820) | 77.08th | v5 (v2026.06.15) |
| Aug 23, 2026 | 3.02% (0.03021) | 86.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.83% (0.01829) | 75.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00118) | 28.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00138) | 50.89th | v3 (v2023.03.01) |
| Jun 3, 2024 | 0.14% (0.00138) | 49.33th | v3 (v2023.03.01) |
| Mar 7, 2024 | 0.18% (0.00180) | 54.43th | v3 (v2023.03.01) |
| Oct 8, 2023 | 0.13% (0.00127) | 46.82th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00107) | 41.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.81% (0.01806) | 35.10th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.81% (0.01806) | 0.00th | v1 |
References (10)
- 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/105692 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-18309 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1639911 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-18309
- https://sourceware.org/bugzilla/show_bug.cgi?id=23770 x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=0930cb3021b8078b34cf216e79eb8608d017864f x_refsource_MISC
- https://usn.ubuntu.com/4336-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2018-18309
| 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/105692 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-18309 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1639911 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-18309 | ||
| https://sourceware.org/bugzilla/show_bug.cgi?id=23770 | x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory | |
| https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=0930cb3021b8078b34cf216e79eb8608d017864f | x_refsource_MISC | |
| https://usn.ubuntu.com/4336-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2018-18309 |
Change history (0)
No recorded changes yet.