Vulnerability identifier: #VU38137
Vulnerability risk: Medium
CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2017-15021
CWE-ID:
CWE-125
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Binutils
Universal components / Libraries /
Libraries used by multiple products
Vendor: GNU
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in bfd_get_debug_link_info_1 in opncls.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29,. A remote attacker can perform a denial of service (heap-based buffer over-read and application crash) via a crafted ELF file, related to bfd_getl32.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Binutils: 2.29
External links
https://blogs.gentoo.org/ago/2017/10/03/binutils-heap-based-buffer-overflow-in-bfd_getl32-opncls-c/
https://sourceware.org/bugzilla/show_bug.cgi?id=22197
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=52b36c51e5bf6d7600fdc6ba115b170b0e78e31d
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.