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CVE-2020-13131

Quick assessment

Affected
n/a n/a
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.

Yubico libykpiv是瑞典Yubico公司的一款YubiKey智能卡微型驱动程序中的秘钥处理库。 Yubico libykpiv 2.1.0之前版本中的lib/util.c文件存在安全漏洞。攻击者可利用该漏洞获取信息。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.49% · P40
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I. Basic Information for CVE-2020-13131

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will cause stack memory to be copied into heap allocated memory that gets returned to the caller. The leaked memory could include PINs, passwords, key material, and other sensitive information depending on the integration. During further processing by the caller, this information could leak across trust boundaries. Note that RSA key generation is triggered by the host and cannot directly be triggered by the token.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Yubico libykpiv 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yubico libykpiv是瑞典Yubico公司的一款YubiKey智能卡微型驱动程序中的秘钥处理库。 Yubico libykpiv 2.1.0之前版本中的lib/util.c文件存在安全漏洞。攻击者可利用该漏洞获取信息。
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
- n/a n/a -

II. Public POCs for CVE-2020-13131

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III. Intelligence Information for CVE-2020-13131

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Security Blog Posts for CVE-2020-13131 (1)

Other References for CVE-2020-13131 (1)

Same Patch Batch · n/a · 2020-07-09 · 16 CVEs total

CVE-2020-7692 7.4 HIGH Improper Authorization
CVE-2020-7693 5.3 MEDIUM Denial of Service (DoS)
CVE-2020-9377 D-Link DIR-610 代码注入漏洞
CVE-2020-9376 D-Link DIR-610 信息泄露漏洞
CVE-2020-7457 FreeBSD 资源管理错误漏洞
CVE-2020-7458 FreeBSD 缓冲区错误漏洞
CVE-2020-13992 Klemen Stirn HESK 跨站脚本漏洞
CVE-2020-13993 Klemen Stirn HESK SQL注入漏洞
CVE-2020-13994 Klemen Stirn HESK 代码注入漏洞
CVE-2020-10756 libslirp 缓冲区错误漏洞
CVE-2020-15526 Red Gate Software Redgate SQL Monitor 信息泄露漏洞
CVE-2020-13132 Yubico libykpiv 加密问题漏洞
CVE-2020-15000 Yubico YubiKey 5 安全漏洞
CVE-2020-15001 Yubico YubiKey 5 NFC 信息泄露漏洞
CVE-2020-15299 WordPress KingComposer 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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