Vulnerability Details : CVE-2016-9558
Potential exploit
(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 category: Overflow
Products affected by CVE-2016-9558
- cpe:2.3:a:libdwarf_project:libdwarf:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-9558
1.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-9558
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2016-9558
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-9558
-
https://blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/
libdwarf: negation overflow in dwarf_leb.c | agostino's blogExploit;Patch;Third Party Advisory;VDB Entry
-
http://www.openwall.com/lists/oss-security/2016/11/23/3
oss-security - Re: libdwarf: negation overflow in dwarf_leb.cMailing List;Patch;Third Party Advisory
-
https://sourceforge.net/p/libdwarf/code/ci/4f19e1050cd8e9ddf2cb6caa061ff2fec4c9b5f9/#diff-5
libdwarf - DWARF debugging information / Code / Commit [4f19e1]Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/11/19/6
oss-security - libdwarf: negation overflow in dwarf_leb.cMailing List;Patch;Third Party Advisory
-
https://www.prevanders.net/dwarfbug.html
DA's Libdwarf VulnerabilitiesThird Party Advisory
-
http://www.securityfocus.com/bid/94491
libdwarf CVE-2016-9558 Integer Overflow VulnerabilityThird Party Advisory;VDB Entry
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