Vulnerability Details : CVE-2016-4493
The demangle_template_value_parm and do_hpacc_template_literal functions in cplus-dem.c in libiberty allow remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted binary.
Vulnerability category: Denial of service
Products affected by CVE-2016-4493
- cpe:2.3:a:gnu:libiberty:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-4493
0.37%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-4493
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2016-4493
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-4493
-
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70926
70926 – Libiberty Demangler segfaults (5)Issue Tracking
-
http://www.openwall.com/lists/oss-security/2016/05/05/5
oss-security - Re: CVE Request: No Demangling During Analysis of Untrusted BinariesMailing List;Patch;Third Party Advisory
-
https://gcc.gnu.org/ml/gcc-patches/2016-05/msg00223.html
Marcel BÃhme - Fix for PR70926 in Libiberty Demangler (5)Patch;Vendor Advisory
-
http://www.securityfocus.com/bid/90014
GNU GCC 'lilibiberty/cplus-dem.c' Multiple Denial of Service Vulnerabilities
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