Vulnerability Details : CVE-2018-20673
The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for "Create an array for saving the template argument values") that can trigger a heap-based buffer overflow, as demonstrated by nm.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2018-20673
- cpe:2.3:a:gnu:binutils:2.31.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20673
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20673
| 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-2018-20673
-
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)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20673
-
http://www.securityfocus.com/bid/106454
GNU libiberty CVE-2018-20673 Integer Overflow VulnerabilityThird Party Advisory;VDB Entry
-
https://sourceware.org/bugzilla/show_bug.cgi?id=24039
24039 – integer overflow in libiberty, heap overflow will be triggeredExploit;Issue Tracking;Third Party Advisory
Jump to