Vulnerability Description
An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Binutils | 2.31 |
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/105692Third Party AdvisoryVDB Entry
- https://sourceware.org/bugzilla/show_bug.cgi?id=23770ExploitIssue TrackingPatch
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=0930cb3021b8078b34c
- 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/105692Third Party AdvisoryVDB Entry
- https://sourceware.org/bugzilla/show_bug.cgi?id=23770ExploitIssue TrackingPatch
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=0930cb3021b8078b34c
- https://usn.ubuntu.com/4336-1/
FAQ
What is CVE-2018-18309?
CVE-2018-18309 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. Th...
How severe is CVE-2018-18309?
CVE-2018-18309 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-2018-18309?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Binutils.