Integer overflow in Libdwarf Project
CVE-2016-9558
(1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124 allow remote attackers to have unspecified impact via a crafted bit pattern in a signed leb number, aka a "negation overflow."
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.051 (92.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.prevanders.net/dwarfbug.html (Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/11/19/6 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/94491 (VDB Entry, Third Party Advisory, vdb-entry)
- blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/ (Exploit, Patch, VDB Entry, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/11/23/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
- sourceforge.net/p/libdwarf/code/ci/4f19e1050cd8e9ddf2cb6caa061ff2fec4c9b5f9/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2016-9558?
- CVE-2016-9558 is a critical-severity vulnerability in Libdwarf Project, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-02-28.
- How severe is CVE-2016-9558?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-9558 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.