CVE-2020-5496
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in...
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
- Record
CVE-2020-5496- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
- Record
CVE-2020-5496- Updated
- 2026-11-02
EUVDEUVD-2020-26663 No score
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
- Record
EUVD-2020-26663- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v4hc-3q2q-94jp
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in...
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
- Record
GHSA-v4hc-3q2q-94jp- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
- Record
CVE-2020-5496- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-5496
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
- Record
DEBIAN-CVE-2020-5496- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Show 5 moreShow less
OSVUBUNTU-CVE-2020-5496
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
- Record
UBUNTU-CVE-2020-5496- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVMGASA-2020-0057 No score
Updated fontforge packages fix security vulnerabilities
FontForge 20190801 has a use-after-free in SFD_GetFontMetaData in sfd.c (CVE-2020-5395)
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c (CVE-2020-5496)
- Record
MGASA-2020-0057- Updated
- 2026-11-02
OSVopenSUSE-SU-2020:0089-1 No score
Security update for fontforge
This update for fontforge fixes the following issues:
- CVE-2020-5395: Fixed a use-after-free in SFD_GetFontMetaData() (bsc#1160220).
- CVE-2020-5496: Fixed a heap-based buffer overflow in Type2NotDefSplines() (bsc#1160236).
This update was imported from the SUSE:SLE-15:Update update project.
- Record
openSUSE-SU-2020:0089-1- Updated
- 2026-11-02
OSVSUSE-SU-2020:0118-1 No score
Security update for fontforge
This update for fontforge fixes the following issues:
- CVE-2020-5395: Fixed a use-after-free in SFD_GetFontMetaData() (bsc#1160220).
- CVE-2020-5496: Fixed a heap-based buffer overflow in Type2NotDefSplines() (bsc#1160236).
- Record
SUSE-SU-2020:0118-1- Updated
- 2026-11-02
OSVSUSE-SU-2020:0393-1 No score
Security update for fontforge
This update for fontforge fixes the following issues:
- CVE-2020-5395: Fixed a use-after-free in SFD_GetFontMetaData() (bsc#1160220).
- CVE-2020-5496: Fixed a heap-based buffer overflow in Type2NotDefSplines() (bsc#1160236).
- Record
SUSE-SU-2020:0393-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fontforgeDebian:12 |
before 1:20201107~dfsg-1 | 1:20201107~dfsg-1 |
fontforgeDebian:13 |
before 1:20201107~dfsg-1 | 1:20201107~dfsg-1 |
fontforgeDebian:14 |
before 1:20201107~dfsg-1 | 1:20201107~dfsg-1 |
fontforgeDebian:10 |
before 1:20170731~dfsg-1+deb10u1, plus listed versions 1:20170731~dfsg-1 |
1:20170731~dfsg-1+deb10u1 |
fontforgeMageia:7 |
before 20190413-1.1.mga7 | 20190413-1.1.mga7 |
fontforgeSUSE:Linux Enterprise Software Development Kit 12 SP4 |
before 20170731-11.11.1 | 20170731-11.11.1 |
fontforgeSUSE:Linux Enterprise Software Development Kit 12 SP5 |
before 20170731-11.11.1 | 20170731-11.11.1 |
fontforgeUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 20120731.b-520120731.b-5ubuntu120120731.b-7.120120731.b-7.1ubuntu0.120120731.b-7.1ubuntu0.1+esm1 |
None known |
fontforgeUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1:20161005~dfsg-4+deb9u1ubuntu11:20170731~dfsg-11:20170731~dfsg-1ubuntu0.1~esm1 |
None known |
fontforgeUbuntu:20.04:LTS |
All versions, plus listed versions 1:20170731~dfsg-1build11:20170731~dfsg-21:20190801~dfsg-21:20190801~dfsg-2ubuntu11:20190801~dfsg-41:20190801~dfsg-4ubuntu0.1 |
None known |
fontforgeopenSUSE:Leap 15.1 |
before 20170731-lp151.4.3.1 | 20170731-lp151.4.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-5496 is a high vulnerability (CVSS 8.8) in Fontforge, published January 3, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.37%, the 83rd percentile. Fixed in fontforge 1:20201107~dfsg-1.
References
github.com/fontforge/fontforge/issues/4085
lists.opensuse.org/opensuse-security-announce/2020-01/msg00041.html
security.gentoo.org/glsa/202004-14
lists.debian.org/debian-lts-announce/2024/03/msg00007.html
nvd.nist.gov/vuln/detail/CVE-2020-5496
Show 13 moreShow less
security-tracker.debian.org/tracker/CVE-2020-5496
advisories.mageia.org/MGASA-2020-0057.html
bugs.mageia.org/show_bug.cgi?id=26095
suse.com/support/update/announcement/2020/suse-su-20200118-1
bugzilla.suse.com/1160220
ubuntu.com/security/CVE-2020-5496
cve.org/CVERecord?id=CVE-2020-5496