CVE-2021-29623
Published: 13 May 2021
Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. 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. The bug is fixed in version v0.27.4.
Priority
Status
Package | Release | Status |
---|---|---|
exiv2
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
focal |
Released
(0.27.2-8ubuntu2.4)
|
|
groovy |
Released
(0.27.3-3ubuntu0.4)
|
|
hirsute |
Released
(0.27.3-3ubuntu1.3)
|
|
impish |
Released
(0.27.3-3ubuntu3)
|
|
jammy |
Released
(0.27.3-3ubuntu3)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(v0.27.4)
|
|
xenial |
Not vulnerable
(code not present)
|
|
Patches:
upstream: https://github.com/Exiv2/exiv2/pull/1627/commits/82e46b5524fb904e6660dadd2c6d8e5e47375a1a |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 3.3 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |