Vulnerability Name:

CVE-2021-20240 (CCN-202701)

Assigned:2020-12-17
Published:2021-02-16
Updated:2021-06-02
Summary:A flaw was found in gdk-pixbuf in versions before 2.42.0. An integer wraparound leading to an out of bounds write can occur when a crafted GIF image is loaded. An attacker may cause applications to crash or could potentially execute code on the victim system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
8.1 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.1 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:8.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Complete
7.6 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
CWE-191
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-20240

Source: CCN
Type: Red Hat Bugzilla - Bug 1926787
(CVE-2021-20240) - CVE-2021-20240 gdk-pixbuf: integer wraparound in the GIF loader of gdk-pixbuf via crafted input leads to segmentation fault

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1926787

Source: XF
Type: UNKNOWN
gnome-cve202120240-code-exec(202701)

Source: CCN
Type: gdk-pixbuf GIT Repository
Check the memset length argument

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-755ba8968a

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-c918632e13

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-2e59756cbe

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-20240

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnome:gdk-pixbuf:*:*:*:*:*:*:*:* (Version < 2.42.0)

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

    • * Denotes that component is vulnerable
    BACK
    gnome gdk-pixbuf *
    fedoraproject fedora 33
    fedoraproject fedora 34