CVE-2018-20657

Public Exploit

Description

The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, has a memory leak via a crafted string, leading to a denial of service (memory consumption), as demonstrated by cxxfilt, a related issue to CVE-2018-12698.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.60%
Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106444 third party advisory vdb entry
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539 third party advisory issue tracking exploit
https://support.f5.com/csp/article/K62602089 third party advisory
https://access.redhat.com/errata/RHSA-2019:3352 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-20657?
CVE-2018-20657 has been scored as a high severity vulnerability.
How to fix CVE-2018-20657?
To fix CVE-2018-20657, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20657 being actively exploited in the wild?
It is possible that CVE-2018-20657 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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