CVE-2018-20712
A heap-based buffer over-read exists in the function d_expression_1 in cp-demangle.c in GNU...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-20712- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-20712- Updated
- 2026-11-02
EUVDEUVD-2018-13259 No score
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.
- Record
EUVD-2018-13259- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cgr8-f44r-j4r5
A heap-based buffer over-read exists in the function d_expression_1 in cp-demangle.c in GNU...
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.
- Record
GHSA-cgr8-f44r-j4r5- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSVALPINE-CVE-2018-20712
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.
- Record
ALPINE-CVE-2018-20712- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
OSVBELL-CVE-2018-20712
CVE-2018-20712 does not affect BellSoft software
- Record
BELL-CVE-2018-20712- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 4 moreShow less
OSV
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.
- Record
CVE-2018-20712- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-20712
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.
- Record
DEBIAN-CVE-2018-20712- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-20712
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.
- Record
UBUNTU-CVE-2018-20712- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVROOT-OS-DEBIAN-12-CVE-2018-20712 No score
CVE-2018-20712 in binutils - Patched by Root
Root has patched CVE-2018-20712 in the binutils package for Root:Debian:12. Multiple fixed versions available.
- Record
ROOT-OS-DEBIAN-12-CVE-2018-20712- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
binutilsAlpine:v3.10 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.11 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.12 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.13 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.14 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.15 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.16 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.17 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.18 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.19 |
before 2.32-r0 | 2.32-r0 |
Show 13 moreShow less
| Package | Affected | Fixed |
|---|---|---|
binutilsAlpine:v3.20 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.21 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.22 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.23 |
before 2.32-r0 | 2.32-r0 |
binutilsAlpine:v3.24 |
before 2.32-r0 | 2.32-r0 |
binutils-avrAlpine:v3.11 |
before 2.32-r0 | 2.32-r0 |
binutils-avrAlpine:v3.12 |
before 2.32-r0 | 2.32-r0 |
binutilsDebian:12 |
All versions, plus listed versions 2.40-22.40.50.20230111-12.40.50.20230215-12.40.50.20230501-12.40.50.20230510-1 Show 45 moreShow less2.40.50.20230602-12.40.50.20230611-12.40.50.20230611-22.40.50.20230622-12.40.50.20230625-12.40.50.20230630-12.40.90.20230705-12.40.90.20230714-12.40.90.20230714-22.40.90.20230720-12.40.90.20230729-12.40.90.20230729-22.41-12.41-22.41-32.41-42.41-52.41-62.41-72.41.50.20230731-12.41.50.20230803-12.41.50.20230905-12.41.50.20231010-12.41.50.20231101-12.41.50.20231125-12.41.50.20231202-12.41.50.20231206-12.41.50.20231214-12.41.50.20231227-12.41.90.20240115-12.41.90.20240122-12.42-12.42-22.42-2+hurd.12.42-32.42-42.42.50.20240614-12.42.50.20240618-12.42.50.20240625-12.42.50.20240710-12.42.90.20240720-12.42.90.20240720-22.43-12.43-22.43.1-1 |
None known |
binutilsDebian:13 |
All versions, plus listed versions 2.44-32.44.50.20250201-12.44.50.20250207-12.44.50.20250218-12.44.50.20250218-2 Show 45 moreShow less2.44.50.20250309-12.44.50.20250405-12.44.50.20250502-12.44.50.20250520-12.44.50.20250528-12.44.50.20250707-12.44.90.20250719-12.45-12.45-22.45-32.45-42.45-52.45-62.45-72.45-82.45.50.20250813-12.45.50.20250903-12.45.50.20251005-12.45.50.20251023-12.45.50.20251023-22.45.50.20251122-12.45.50.20251125-12.45.50.20251201-12.45.50.20251209-12.45.50.20260116-12.45.50.20260119-12.45.90.20260125-12.45.90.20260201-12.46-12.46-22.46-32.46.50.20260216-12.46.50.20260509-12.46.50.20260519-12.46.50.20260608-12.46.50.20260617-12.46.90.20260712-12.47-12.47-22.47-32.47-42.47-52.47-62.47.50.20260813-12.47.50.20260813-2 |
None known |
binutilsDebian:14 |
All versions, plus listed versions 2.44-32.44.50.20250201-12.44.50.20250207-12.44.50.20250218-12.44.50.20250218-2 Show 45 moreShow less2.44.50.20250309-12.44.50.20250405-12.44.50.20250502-12.44.50.20250520-12.44.50.20250528-12.44.50.20250707-12.44.90.20250719-12.45-12.45-22.45-32.45-42.45-52.45-62.45-72.45-82.45.50.20250813-12.45.50.20250903-12.45.50.20251005-12.45.50.20251023-12.45.50.20251023-22.45.50.20251122-12.45.50.20251125-12.45.50.20251201-12.45.50.20251209-12.45.50.20260116-12.45.50.20260119-12.45.90.20260125-12.45.90.20260201-12.46-12.46-22.46-32.46.50.20260216-12.46.50.20260509-12.46.50.20260519-12.46.50.20260608-12.46.50.20260617-12.46.90.20260712-12.47-12.47-22.47-32.47-42.47-52.47-62.47.50.20260813-12.47.50.20260813-2 |
None known |
binutilsRoot:Debian:12 |
before 2.40-2.root.io.20 | 2.40-2.root.io.202.40-2.root.io.212.40-2.root.io.222.40-2.root.io.232.40-2.root.io.242.40-2.aikido.25 |
rootio-binutilsRoot:Debian:12 |
before 2.40-2.root.io.20 | 2.40-2.root.io.202.40-2.root.io.212.40-2.root.io.222.40-2.root.io.232.40-2.root.io.242.40-2.aikido.25 |
libibertyUbuntu:16.04:LTS |
All versions, plus listed versions 20141014-120160215-120160215-1ubuntu0.220160215-1ubuntu0.3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-20712 is a medium vulnerability (CVSS 6.5) in Gnu Binutils, published January 15, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.64%, the 85th percentile. Fixed in binutils 2.32-r0.
References
Left out here: 89 versions. The JSON record has them.