Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Binutils | 2.31 |
| Debian | Debian Linux | 7.0 |
| Netapp | Data Ontap | - |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
- http://www.securityfocus.com/bid/105754Third Party AdvisoryVDB Entry
- https://security.netapp.com/advisory/ntap-20190307-0003/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=23805ExploitIssue TrackingThird Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=102def4da826b3d9e16
- https://usn.ubuntu.com/4336-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
- http://www.securityfocus.com/bid/105754Third Party AdvisoryVDB Entry
- https://security.netapp.com/advisory/ntap-20190307-0003/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=23805ExploitIssue TrackingThird Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=102def4da826b3d9e16
- https://usn.ubuntu.com/4336-1/
FAQ
What is CVE-2018-18607?
CVE-2018-18607 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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_lin...
How severe is CVE-2018-18607?
CVE-2018-18607 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-18607?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Binutils, Debian Debian Linux, Netapp Data Ontap.