CVE-2021-34335— Denial of service due to FPE in Exiv2::Internal::resolveLens0xffff
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 0.27.4之前版本存在数字错误漏洞，该漏洞源于软件中发现了一个浮点异常，该异常是由整数除零引起的。当使用Exiv2打印图像文件的元数据时，会触发浮点异常。攻击者可利用该漏洞诱骗受害者在一个特制的图像文件上运行Exiv2，那么攻击者可能会利用该漏洞导致拒绝服务。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-34335
Vulnerability Information
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Vulnerability Title
Denial of service due to FPE in Exiv2::Internal::resolveLens0xffff
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. A floating point exception (FPE) due to an integer divide by zero was found in Exiv2 versions v0.27.4 and earlier. The FPE 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 interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
除零错误
Source: CVE Program / CVE List V5
Vulnerability Title
Exiv2 数字错误漏洞
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 0.27.4之前版本存在数字错误漏洞，该漏洞源于软件中发现了一个浮点异常，该异常是由整数除零引起的。当使用Exiv2打印图像文件的元数据时，会触发浮点异常。攻击者可利用该漏洞诱骗受害者在一个特制的图像文件上运行Exiv2，那么攻击者可能会利用该漏洞导致拒绝服务。
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
II. Public POCs for CVE-2021-34335
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Patches & Fixes for CVE-2021-34335 (1)
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https://github.com/Exiv2/exiv2/pull/1750 x_refsource_MISC
Vendor Advisories for CVE-2021-34335 (2)
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https://github.com/Exiv2/exiv2/security/advisories/GHSA-pvjp-m4f6-q984 x_refsource_CONFIRM
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https://security.gentoo.org/glsa/202312-06 vendor-advisory
Mailing List Discussions for CVE-2021-34335 (2)
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/ vendor-advisory x_refsource_FEDORA
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-2021-37621 | 5.5 MEDIUM | Denial of service due to infinite loop in Image::printIFDStructure |
| 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-2021-37615 | 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
-
CVE-2026-25884
Exiv2: Out-of-bounds read in CrwMap::decode0x0805 -
CVE-2026-27596
Exiv2: Integer Underflow in LoaderNative::getData() Causes H -
CVE-2026-27631
Exiv2: Uncaught exception - cannot create std::vector larger -
CVE-2025-55304
Exiv2 has quadratic performance in ICC profile parsing in Jp -
CVE-2025-54080
Exiv2 Segmentation Faults in Exiv2::EpsImage::writeMetadata(
Same vendor: Exiv2
-
CVE-2026-25884
Exiv2: Out-of-bounds read in CrwMap::decode0x0805 -
CVE-2026-27596
Exiv2: Integer Underflow in LoaderNative::getData() Causes H -
CVE-2026-27631
Exiv2: Uncaught exception - cannot create std::vector larger -
CVE-2025-55304
Exiv2 has quadratic performance in ICC profile parsing in Jp -
CVE-2025-54080
Exiv2 Segmentation Faults in Exiv2::EpsImage::writeMetadata(
Same weakness: CWE-369
-
CVE-2026-101887
BlueALSA bluealsad LC3plus Decoder Division-by-Zero DoS -
CVE-2026-47534
NVIDIA驱动内核层除零漏洞致拒绝服务 -
CVE-2026-93589
ImageMagick before 7.1.2-31 Division by Zero in FLIF encoder -
CVE-2026-92881
vgmstream AWB parser awb.c init_vgmstream_awb_memory divide -
CVE-2026-91955
FreeRDP before 3.31.0 Denial of Service via Desktop Dimensio
V. Comments for CVE-2021-34335
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