Exiv2
CVE-2021-32617
MEDIUM
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An inefficient algorithm (quadratic complexity) was found in Exiv2 versions v0.27.3 and earlier. The inefficient algorithm is triggered when Exiv2 is used to write metadata into 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. The bug is fixed in version v0.27.4. Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as rm.
AnalysisAI
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. This Uncontrolled Resource Consumption vulnerability could allow attackers to cause denial of service by exhausting system resources.
Technical ContextAI
This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An inefficient algorithm (quadratic complexity) was found in Exiv2 versions v0.27.3 and earlier. The inefficient algorithm is triggered when Exiv2 is used to write metadata into 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. The bug is fixed in version v0.27.4. Note that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as rm. Affected products include: Exiv2, Fedoraproject Fedora.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.
Exiv2 0.26 has a heap-based buffer overflow in getData in preview.cpp. Rated critical severity (CVSS 9.8), this vulnerab
An issue was discovered in Exiv2 0.27. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no au
An issue was discovered in Exiv2 0.27. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no au
Exiv2 0.26 has a heap-based buffer over-read in WebPImage::decodeChunks in webpimage.cpp. Rated high severity (CVSS 8.8)
Exiv2 0.26 has an integer overflow in the LoaderExifJpeg class in preview.cpp, leading to an out-of-bounds read in Exiv2
Exiv2 0.26 has integer overflows in LoaderTiff::getData() in preview.cpp, leading to an out-of-bounds read in Exiv2::Val
Out-of-bounds read in Exiv2's CRW image parser allows remote attackers to cause denial of service and potentially disclo
samples/geotag.cpp in the example code of Exiv2 0.26 misuses the realpath function on POSIX platforms (other than Apple
In Exiv2 0.26, an out-of-bounds read in IptcData::printStructure in iptc.c could result in a crash or information leak,
In Exiv2 0.26, there is an out-of-bounds read in Exiv2::Internal::binaryToString in image.cpp. Rated high severity (CVSS
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image file
Exiv2 0.27.99.0 has a heap-based buffer over-read in Exiv2::RafImage::readMetadata() in rafimage.cpp. Rated high severit
Same weakness CWE-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
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External POC / Exploit Code
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