CVE-2021-29457: Heap buffer overflow in Exiv2::Jp2Image::doWriteMetadata
First published: Mon Apr 19 2021(Updated: )
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.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/exiv2 | 0.25-4+deb10u2 0.25-4+deb10u4 0.27.3-3+deb11u2 0.27.3-3+deb11u1 0.27.6-1 | |
| Exiv2 Exiv2 | <0.27.4 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| redhat/exiv2 | <0.27.4 | 0.27.4 |
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Reference Links
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-v74w-h496-cgqm
- https://github.com/Exiv2/exiv2/issues/1529
- https://github.com/Exiv2/exiv2/pull/1534
- https://github.com/Exiv2/exiv2/commit/13e5a3e02339b746abcaee6408893ca2fd8e289d
- https://security-tracker.debian.org/tracker/CVE-2021-29457
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/
- https://www.debian.org/security/2021/dsa-4958
- 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://security.gentoo.org/glsa/202312-06
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1952613
- https://access.redhat.com/errata/RHSA-2021:4173
- https://bugzilla.redhat.com/show_bug.cgi?id=1952612
- collector/security-tracker-debian
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