Vulnerability Name:

CVE-2021-29457 (CCN-200251)

Assigned:2021-04-18
Published:2021-04-18
Updated:2021-09-21
Summary: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.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
7.8 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
4.3 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-122
CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-29457

Source: XF
Type: UNKNOWN
exiv2-cve202129457-bo(200251)

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/Exiv2/exiv2/issues/1529

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/Exiv2/exiv2/pull/1534

Source: CCN
Type: Exiv2 GIT Repository
Heap buffer overflow in Exiv2::Jp2Image::doWriteMetadata

Source: CONFIRM
Type: Third Party Advisory
https://github.com/Exiv2/exiv2/security/advisories/GHSA-v74w-h496-cgqm

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20210830 [SECURITY] [DLA 2750-1] exiv2 security update

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-10d7331a31

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-be94728b95

Source: DEBIAN
Type: Third Party Advisory
DSA-4958

Vulnerable Configuration:Configuration 1:
  • cpe:/a:exiv2:exiv2:*:*:*:*:*:*:*:* (Version < 0.27.4)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7930
    P
    		libexiv2-27-0.27.5-150400.15.4.1 on GA media (Moderate)
    2023-06-12
    oval:com.redhat.rhsa:def:20214173
    P
    		RHSA-2021:4173: exiv2 security, bug fix, and enhancement update (Moderate)
    2021-11-09
    BACK
    exiv2 exiv2 *
    fedoraproject fedora 33
    fedoraproject fedora 34
    debian debian linux 9.0
    debian debian linux 10.0