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CVE-2018-20450

Date: December 25, 2018

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.

Language: C

Severity Score

Related Resources (5)

https://security-tracker.debian.org/tracker/CVE-2018-20450
https://nvd.nist.gov/vuln/detail/CVE-2018-20450
https://github.com/evanmiller/libxls/issues/34
https://security.gentoo.org/glsa/202003-64
https://www.mend.io/vulnerability-database/CVE-2018-20450

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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