PT-2018-3983 · Gnu+3 · Gnu Binutils+4

Wcventure · Published 2018-12-28 · Updated 2026-04-20 · CVE-2018-20712

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions GNU Binutils version 2.31.1

Description The issue is related to a heap-based buffer over-read in the d expression 1 function in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils. This can be exploited by a remote attacker using a crafted input, potentially causing segmentation faults and leading to a denial-of-service (DoS).

Recommendations For GNU Binutils version 2.31.1, consider disabling the d expression 1 function in cp-demangle.c as a temporary workaround to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2019-3046

BDU:2024-06974

CLEANSTART-2026-HF39630

CVE-2018-20712

ECHO-0160-9330-67CD

Affected Products

Alt Linux

Astra Linux

Debian

Gnu Binutils

Gnu Libiberty

References · 37

• 🔥 https://sourceware.org/bugzilla/show_bug.cgi?id=24043 · Exploit
• 🔥 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88629 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-20712 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2018-20712 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-20712 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-20712 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-19932 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-3487 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-20712 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-19931 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-20712 · Vendor Advisory
• https://osv.dev/vulnerability/CLEANSTART-2026-HF39630 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-20712 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06974 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-1579 · Security Note