CVE-2021-3482: Buffer Overflow
First published: Mon Apr 05 2021(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/exiv2 | <=0.27.3-3+deb11u1 | 0.25-4+deb10u2 0.25-4+deb10u4 0.27.3-3+deb11u2 0.27.6-1 |
| redhat/exiv2 | <0.27.4 | 0.27.4 |
| CentOS Dos2unix | <=0.27.3 | |
| CentOS Dos2unix | =0.27.4-rc1 | |
| Red Hat Enterprise Linux | =8.0 | |
| Fedora | =33 | |
| Fedora | =34 | |
| Debian | =9.0 | |
| Debian | =10.0 |
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Reference Links
- https://github.com/Exiv2/exiv2/issues/1522
- https://github.com/Exiv2/exiv2/commit/22ea582c6b74ada30bec3a6b15de3c3e52f2b4da
- https://github.com/Exiv2/exiv2/commit/cac151ec052d44da3dc779e9e4028e581acb128a
- https://security-tracker.debian.org/tracker/CVE-2021-3482
- 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@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://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1946315
- https://github.com/Exiv2/exiv2/pull/1523/commits/22ea582c6b74ada30bec3a6b15de3c3e52f2b4da
- https://access.redhat.com/errata/RHSA-2021:4173
- https://access.redhat.com/security/cve/cve-2021-3482
Frequently Asked Questions
What is the severity of CVE-2021-3482?
CVE-2021-3482 is considered a high-severity vulnerability due to its potential for heap-based buffer overflow attacks.
How do I fix CVE-2021-3482?
To fix CVE-2021-3482, update Exiv2 to version 0.27.4 or later, or apply patches provided by your operating system vendor.
What systems are affected by CVE-2021-3482?
CVE-2021-3482 affects Exiv2 versions prior to 0.27.4-RC1 across multiple Linux distributions including Debian and Red Hat.
What type of vulnerabilities does CVE-2021-3482 exploit?
CVE-2021-3482 exploits improper input validation leading to buffer overflow vulnerabilities in handling crafted JPG images.
Is CVE-2021-3482 a remote code execution vulnerability?
Yes, CVE-2021-3482 can lead to remote code execution under certain conditions due to the buffer overflow.
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