CVE-2018-18607

Public Exploit

Description

An issue was discovered in elf_link_input_bfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/105754 third party advisory vdb entry
https://security.netapp.com/advisory/ntap-20190307-0003/ third party advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=23805 third party advisory issue tracking exploit
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=102def4da826b3d9e169741421e5e67e8731909a
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html vendor advisory
https://usn.ubuntu.com/4336-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-18607?
CVE-2018-18607 has been scored as a medium severity vulnerability.
How to fix CVE-2018-18607?
To fix CVE-2018-18607, 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-2018-18607 being actively exploited in the wild?
It is possible that CVE-2018-18607 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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