CVE-2021-32815 – Denial of service due to assertion failure in crwimage_int.cpp
https://notcve.org/view.php?id=CVE-2021-32815
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The assertion failure is triggered when Exiv2 is used to modify 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 modifying 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 `fi`. ### Patches The bug is fixed in version v0.27.5. ### References Regression test and bug fix: #1739 ### For more information Please see our [security policy](https://github.com/Exiv2/exiv2/security/policy) for information about Exiv2 security. • https://github.com/Exiv2/exiv2/pull/1739 https://github.com/Exiv2/exiv2/security/advisories/GHSA-mv9g-fxh2-m49m https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC https://security.gentoo.org/glsa/202312-06 • CWE-617: Reachable Assertion •
CVE-2021-3482 – exiv2: Heap-based buffer overflow in Jp2Image::readMetadata()
https://notcve.org/view.php?id=CVE-2021-3482
A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow via a crafted JPG image containing malicious EXIF data. Se encontró un fallo en Exiv2 en versiones anteriores e incluyendo 0.27.4-RC1. Una comprobación inapropiada de la entrada de la propiedad rawData.size en la función Jp2Image::readMetadata() en el archivo jp2image.cpp puede conllevar a un desbordamiento del búfer en la región stack de la memoria por medio de una imagen JPG diseñada que contiene datos EXIF ??maliciosos A flaw was found in Exiv2. • https://bugzilla.redhat.com/show_bug.cgi?id=1946314 https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN https://www.debian.org/security/2021/dsa-4958 https://access.redhat.com/security/cve/CVE-2021-3482 • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •