Out-of-bounds Read in GNU Binutils
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- GNU Binutils — versions 2.31.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gcc.gnu.org/bugzilla/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- sourceware.org/bugzilla/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/106563 (VDB Entry, Third Party Advisory, vdb-entry)
- support.f5.com/csp/article/K38336243 (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-20712?
- CVE-2018-20712 is a medium-severity vulnerability in GNU Binutils, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2019-01-15.
- How severe is CVE-2018-20712?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-20712 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.