CVE-2017-7609: Input Validation
First published: Sun Apr 09 2017(Updated: )
elf_compress.c in elfutils 0.168 does not validate the zlib compression factor, which allows remote attackers to cause a denial of service (memory consumption) via a crafted ELF file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/elfutils | 0.183-1 0.188-2.1 0.191-2 | |
| CentOS Elfutils | =0.168 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
- https://blogs.gentoo.org/ago/2017/04/03/elfutils-memory-allocation-failure-in-__libelf_decompress-elf_compress-c
- https://security.gentoo.org/glsa/201710-10
- https://usn.ubuntu.com/3670-1/
- https://launchpad.net/bugs/cve/CVE-2017-7609
- https://sourceware.org/bugzilla/show_bug.cgi?id=21301
- https://blogs.gentoo.org/ago/2017/04/03/elfutils-memory-allocation-failure-in-__libelf_decompress-elf_compress-c/
- https://security-tracker.debian.org/tracker/CVE-2017-7609
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7609
- https://nvd.nist.gov/vuln/detail/CVE-2017-7609
- https://ubuntu.com/security/CVE-2017-7609
Frequently Asked Questions
What is the severity of CVE-2017-7609?
CVE-2017-7609 is classified as a denial of service vulnerability due to memory consumption issues caused by a crafted ELF file.
How do I fix CVE-2017-7609?
To fix CVE-2017-7609, upgrade elfutils to version 0.183-1 or later.
Which versions of elfutils are affected by CVE-2017-7609?
CVE-2017-7609 affects elfutils version 0.168 but not the versions 0.183-1, 0.188-2.1, or 0.191-2.
What type of attacks can exploit CVE-2017-7609?
Attackers can exploit CVE-2017-7609 to create a crafted ELF file that leads to denial of service through excessive memory consumption.
Is CVE-2017-7609 specific to any operating system?
CVE-2017-7609 is particularly relevant for systems using the elfutils package, including certain distributions of Debian.
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