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CVE-2021-29623— Uninitialized variable bug in Exiv2

Quick assessment

Affected
Exiv2 exiv2
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.

Exiv2是Andreas Huggel个人开发者的一套用于管理图像元数据的C++库和命令行应用程序。该产品提供了读取和写入EXIF、IPTC和XMP等多种格式图像元数据的功能。 Exiv2 0.27.3版本及之前存在安全漏洞。该漏洞源于程序未初始化的内存读取。

CVSS 3.6 · Low EPSS 1.10% · P65
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I. Basic Information for CVE-2021-29623

Vulnerability Information
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Vulnerability Title
Uninitialized variable bug in Exiv2
Source: CVE Program / CVE List V5
Vulnerability Description
Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对未经初始化资源的使用
Source: CVE Program / CVE List V5
Vulnerability Title
Exiv2 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Exiv2是Andreas Huggel个人开发者的一套用于管理图像元数据的C++库和命令行应用程序。该产品提供了读取和写入EXIF、IPTC和XMP等多种格式图像元数据的功能。 Exiv2 0.27.3版本及之前存在安全漏洞。该漏洞源于程序未初始化的内存读取。
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
Exiv2 exiv2 < v0.27.4 -

II. Public POCs for CVE-2021-29623

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III. Intelligence Information for CVE-2021-29623

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Patches & Fixes for CVE-2021-29623 (1)

Vendor Advisories for CVE-2021-29623 (2)

Mailing List Discussions for CVE-2021-29623 (4)

IV. Related Vulnerabilities

Same product: exiv2
Same vendor: Exiv2
Same weakness: CWE-908

V. Comments for CVE-2021-29623

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