Vulnerability Name:

CVE-2020-25690 (CCN-197411)

Assigned:2020-01-21
Published:2020-01-21
Updated:2021-03-01
Summary:An out-of-bounds write flaw was found in FontForge in versions before 20200314 while parsing SFD files containing certain LayerCount tokens. This flaw allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code. The highest threat from this vulnerability is to confidentiality, 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
7.8 High (CCN 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 (CCN 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
8.8 High (REDHAT 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 (REDHAT 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
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
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-119
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-25690

Source: CCN
Type: Red Hat Bugzilla – Bug 1893188
(CVE-2020-25690) - CVE-2020-25690 fontforge: SFD_GetFontMetaData() insufficient CVE-2020-5395 backport

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1893188

Source: XF
Type: UNKNOWN
fontforge-cve202025690-code-exec(197411)

Source: CCN
Type: fontforge GIT Repository
Fix for #4084 Use-after-free (heap) in the SFD_GetFontMetaData() func

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-25690

Vulnerable Configuration:Configuration 1:
  • cpe:/a:fontforge:fontforge:*:*:*:*:*:*:*:* (Version < 20200314)

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

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

  • Configuration CCN 1:
  • cpe:/a:fontforge:fontforge:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:202025690
    V
    CVE-2020-25690
    2022-09-02
    oval:org.opensuse.security:def:3834
    P
    yast2-core-3.3.1-1.7 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3196
    P
    libjpeg62-32bit-62.2.0-31.14.2 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3194
    P
    libjbig2-2.0-12.13 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:69093
    P
    Security update for redis (Important)
    2021-11-23
    oval:org.opensuse.security:def:96693
    P
    libsnmp30-5.7.3-8.24 on GA media (Moderate)
    2021-09-21
    oval:org.opensuse.security:def:72446
    P
    ImageMagick-7.0.7.34-10.15.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:65656
    P
    Security update for git (Moderate)
    2021-07-29
    oval:org.opensuse.security:def:74720
    P
    Security update for the Linux Kernel (Important)
    2021-07-15
    oval:org.opensuse.security:def:25971
    P
    Security update for fontforge (Moderate)
    2020-12-04
    oval:org.opensuse.security:def:4958
    P
    Security update for fontforge (Moderate)
    2020-12-04
    oval:org.opensuse.security:def:3846
    P
    PackageKit-devel-1.1.3-24.9.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:72330
    P
    ImageMagick-7.0.7.34-8.3 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:52279
    P
    Security update for fontforge (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:65746
    P
    Security update for fontforge (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:52217
    P
    Security update for tiff (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:50941
    P
    Security update for python-rtslib-fb (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:68990
    P
    Security update for xorg-x11-server (Important)
    2020-12-01
    oval:org.opensuse.security:def:50868
    P
    Security update for ceph (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:110344
    P
    Security update for fontforge (Moderate)
    2020-11-29
    oval:org.opensuse.security:def:75473
    P
    Security update for fontforge (Moderate)
    2020-11-26
    oval:org.opensuse.security:def:91112
    P
    Security update for fontforge (Moderate)
    2020-11-26
    oval:org.opensuse.security:def:104767
    P
    Security update for fontforge (Moderate)
    2020-11-26
    oval:org.opensuse.security:def:98077
    P
    Security update for fontforge (Moderate)
    2020-11-26
    oval:com.redhat.rhsa:def:20204844
    P
    RHSA-2020:4844: fontforge security update (Moderate)
    2020-11-04
    BACK
    fontforge fontforge *
    fontforge fontforge *