Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-37621— Denial of service due to infinite loop in Image::printIFDStructure

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 中存在处理逻辑错误漏洞，该漏洞源于产品在打印图片时处理逻辑存在漏洞从而引发无限循环。攻击者可通过该漏洞导致拒绝服务。以下产品及版本受到影响：Exiv2 v0.27.4 版本及之前版本。

CVSS 5.5 · Medium EPSS 1.10% · P65

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-37621

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Denial of service due to infinite loop in Image::printIFDStructure
Source: CVE Program / CVE List V5
Vulnerability Description
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop was found in Exiv2 versions v0.27.4 and earlier. The infinite loop is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the image ICC profile, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p C`). The bug is fixed in version v0.27.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Exiv2 处理逻辑错误漏洞
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 中存在处理逻辑错误漏洞，该漏洞源于产品在打印图片时处理逻辑存在漏洞从而引发无限循环。攻击者可通过该漏洞导致拒绝服务。以下产品及版本受到影响：Exiv2 v0.27.4 版本及之前版本。
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 <= 0.27.4 -

II. Public POCs for CVE-2021-37621

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-37621

请登录查看更多情报信息。

Patches & Fixes for CVE-2021-37621 (1)

Vendor Advisories for CVE-2021-37621 (1)

Mailing List Discussions for CVE-2021-37621 (3)

Same Patch Batch · Exiv2 · 2021-08-09 · 11 CVEs total

CVE-2021-32815 5.5 MEDIUM Denial of service due to assertion failure in crwimage_int.cpp
CVE-2021-34334 5.5 MEDIUM Denial of service due to integer overflow in loop counter
CVE-2021-37616 5.5 MEDIUM Null pointer dereference in Exiv2::Internal::resolveLens0x8ff
CVE-2021-37622 5.5 MEDIUM Denial of service due to infinite loop in JpegBase::printStructure (#1)
CVE-2021-37623 5.5 MEDIUM Denial of service due to infinite loop in JpegBase::printStructure (#2)
CVE-2021-34335 4.7 MEDIUM Denial of service due to FPE in Exiv2::Internal::resolveLens0xffff
CVE-2021-37615 4.7 MEDIUM Null pointer dereference in Exiv2::Internal::resolveLens0x319
CVE-2021-37618 4.7 MEDIUM Out-of-bounds read in Exiv2::Jp2Image::printStructure
CVE-2021-37619 4.7 MEDIUM Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header
CVE-2021-37620 4.7 MEDIUM Out-of-bounds read in XmpTextValue::read()

IV. Related Vulnerabilities

Same product: exiv2
Same vendor: Exiv2
Same weakness: CWE-835

V. Comments for CVE-2021-37621

No comments yet

Leave a comment