Medium severity6.5OSV Advisory· Published Jan 15, 2019· Updated Jun 17, 2026

CVE-2018-20712

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

GNU/Binutilsllm-fuzzy3 versions
= 2.31.1+ 2 more
- (no CPE)range: = 2.31.1
- (no CPE)range: binutils-2_31, binutils-2_31_1, gdb-4_18-branchpoint, …
- cpe:2.3:a:gnu:binutils:2.31.1:*:*:*:*:*:*:*
GNU/Libibertyllm-fuzzy
Range: = 2.31.1

Patches

Vulnerability mechanics

References

gcc.gnu.org/bugzilla/show_bug.cginvdExploitIssue TrackingThird Party Advisory
sourceware.org/bugzilla/show_bug.cginvdExploitIssue TrackingThird Party Advisory
www.securityfocus.com/bid/106563nvdThird Party AdvisoryVDB Entry
support.f5.com/csp/article/K38336243nvdThird Party Advisory

News mentions

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cvss	0.423
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000