CVE-2017-15023

Description

read_formatted_entries in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, does not properly validate the format count, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ELF file, related to concat_filename.

References

Link	Tags
http://www.securityfocus.com/bid/101611	vdb entry
https://security.gentoo.org/glsa/201801-01	vendor advisory
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=c361faae8d964db951b7100cada4dcdc983df1bf
https://sourceware.org/bugzilla/show_bug.cgi?id=22200	issue tracking third party advisory patch
https://blogs.gentoo.org/ago/2017/10/03/binutils-null-pointer-dereference-in-concat_filename-dwarf2-c/	vdb entry third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-15023?: CVE-2017-15023 has been scored as a medium severity vulnerability.
How to fix CVE-2017-15023?: To fix CVE-2017-15023, 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-2017-15023 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2017-15023 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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Description

Category

CWE-476 – NULL Pointer Dereference

References

Frequently Asked Questions