CVE-2021-29623: Uninitialized variable bug in Exiv2
First published: Thu May 13 2021(Updated: )
A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack memory, if they can trick the victim into running Exiv2 on a crafted image file. Reference: <a href="https://github.com/Exiv2/exiv2/security/advisories/GHSA-6253-qjwm-3q4v">https://github.com/Exiv2/exiv2/security/advisories/GHSA-6253-qjwm-3q4v</a> Upstream Patch: <a href="https://github.com/Exiv2/exiv2/pull/1627">https://github.com/Exiv2/exiv2/pull/1627</a>
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Exiv2 Exiv2 | <0.27.4 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| redhat/exiv2 | <0.27.4 | 0.27.4 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/Exiv2/exiv2/pull/1627
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-6253-qjwm-3q4v
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5I3RRZUGSBIUYZ5TIHLN55PKMAWCSJ5G/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M2BPQNJKTRIDINTVJ22QMMTIZEPHVKXK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RQAKFIQHW2AS3AGSJM42ABOA6CWIJBGM/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TZ5SGWHK64TB7ADRSVBGHEPDFN5CSOO3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5I3RRZUGSBIUYZ5TIHLN55PKMAWCSJ5G/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M2BPQNJKTRIDINTVJ22QMMTIZEPHVKXK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQAKFIQHW2AS3AGSJM42ABOA6CWIJBGM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZ5SGWHK64TB7ADRSVBGHEPDFN5CSOO3/
- https://security.gentoo.org/glsa/202312-06
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1961652
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1961651
- https://access.redhat.com/errata/RHSA-2021:4173
- https://bugzilla.redhat.com/show_bug.cgi?id=1961650
- collector/nvd-index
- collector/nvd-api
- agent/event
- agent/author
- agent/type
- agent/last-modified-date
- agent/remedy
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-29623
- agent/software-canonical-lookup
- agent/title
- agent/severity
- agent/weakness
- agent/references
- agent/softwarecombine
- agent/tags
- agent/description
- collector/mitre-cve
- source/MITRE
- vendor/exiv2
- canonical/exiv2 exiv2
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34
- package-manager/redhat