7.8

CVE-2021-29457

Exploit

Heap buffer overflow in Exiv2::Jp2Image::doWriteMetadata

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file. 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 `insert`. The bug is fixed in version v0.27.4.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Exiv2 ≫ Exiv2 Version < 0.27.4
Fedoraproject ≫ Fedora Version33
Fedoraproject ≫ Fedora Version34
Debian ≫ Debian Linux Version9.0
Debian ≫ Debian Linux Version10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.15% 0.798
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
Third Party Advisory
Mailing List
https://www.debian.org/security/2021/dsa-4958
Third Party Advisory
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://github.com/Exiv2/exiv2/issues/1529
Patch
Third Party Advisory
Exploit
https://github.com/Exiv2/exiv2/pull/1534
Patch
Third Party Advisory
https://github.com/Exiv2/exiv2/security/advisories/GHSA-v74w-h496-cgqm
Third Party Advisory
https://security.gentoo.org/glsa/202312-06