CVE-2018-18309: Buffer Overflow
First published: Mon Oct 15 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU Binutils | =2.31 | |
| debian/binutils | 2.35.2-2 2.40-2 2.43.1-3 2.43.1-5 |
Remedy
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0930cb3021b8078b34cf216e79eb8608d017864f
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Reference Links
- 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/105692
- https://sourceware.org/bugzilla/show_bug.cgi?id=23770
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0930cb3021b8078b34cf216e79eb8608d017864f
- https://usn.ubuntu.com/4336-1/
- https://launchpad.net/bugs/cve/CVE-2018-18309
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=0930cb3021b8078b34cf216e79eb8608d017864f
- https://security-tracker.debian.org/tracker/CVE-2018-18309
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18309
- https://nvd.nist.gov/vuln/detail/CVE-2018-18309
- https://ubuntu.com/security/CVE-2018-18309
Frequently Asked Questions
What is CVE-2018-18309?
CVE-2018-18309 is a vulnerability in the Binary File Descriptor (BFD) library, as distributed in GNU Binutils 2.31.
What is the impact of CVE-2018-18309?
The vulnerability causes a segmentation fault and application crash, leading to denial of service.
Which software is affected by CVE-2018-18309?
The affected software includes binutils versions 2.30-21ubuntu1~18.04.3, 2.26.1-1ubuntu1~16.04.8+, and 2.31.1-16.
How can I fix CVE-2018-18309?
To fix CVE-2018-18309, upgrade to a version of binutils that is equal to or higher than 2.31.1-16.
Where can I find more information about CVE-2018-18309?
You can find more information about CVE-2018-18309 at the following references: [sourceware.org/bugzilla/show_bug.cgi?id=23770](sourceware.org/bugzilla/show_bug.cgi?id=23770), [sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0930cb3021b8078b34cf216e79eb8608d017864f](sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0930cb3021b8078b34cf216e79eb8608d017864f), [securityfocus.com/bid/105692](securityfocus.com/bid/105692)
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