Vulnerability Details : CVE-2018-20450
Potential exploit
The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-20450
- cpe:2.3:a:libxls_project:libxls:1.4.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20450
0.26%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20450
| 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 | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2018-20450
-
The product calls free() twice on the same memory address.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20450
-
https://security.gentoo.org/glsa/202003-64
libxls: Multiple vulnerabilities (GLSA 202003-64) — Gentoo security
-
https://github.com/evanmiller/libxls/issues/34
Double Free vulneribility in read_MSAT function · Issue #34 · libxls/libxls · GitHubIssue Tracking;Exploit;Third Party Advisory
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