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CVE-2020-27819

Quick assessment

Affected
n/a libxls
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Libxls是Libxls个人开发者的一个基于C的用于从OLT格式的xls文件读取数据的代码库。 libxls 存在代码问题漏洞，攻击者可利用该漏洞可以通过libxls的xls2csv.c强制解除空指针的引用，以触发拒绝服务。以下产品及版本会受到影响：libxls before and including 1.6.1

AI Predicted 5.3 Difficulty: Easy EPSS 0.83% · P56

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2020-27819

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Libxls 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libxls是Libxls个人开发者的一个基于C的用于从OLT格式的xls文件读取数据的代码库。 libxls 存在代码问题漏洞，攻击者可利用该漏洞可以通过libxls的xls2csv.c强制解除空指针的引用，以触发拒绝服务。以下产品及版本会受到影响：libxls before and including 1.6.1
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- libxls libxls before 1.6.2 -

II. Public POCs for CVE-2020-27819

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III. Intelligence Information for CVE-2020-27819

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Vendor Advisories for CVE-2020-27819 (1)

Same Patch Batch · n/a · 2021-02-23 · 56 CVEs total

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CVE-2021-27582 MITREid Connect 安全漏洞
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CVE-2021-22651 Luxion KeyShot 路径遍历漏洞
CVE-2021-20198 Red Hat OpenShift Container Platform 访问控制错误漏洞

Showing top 20 of 56 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: libxls
Same vendor: n/a
Same weakness: CWE-476

V. Comments for CVE-2020-27819

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