CVE-2020-36427
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
- Record
CVE-2020-36427- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
- Record
CVE-2020-36427- Updated
- 2026-11-02
EUVDEUVD-2020-23955 No score
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
- Record
EUVD-2020-23955- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vx5q-6vmv-w8gj No score
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
- Record
GHSA-vx5q-6vmv-w8gj- Updated
- 2026-11-02
OSV
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
- Record
CVE-2020-36427- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-36427
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
- Record
DEBIAN-CVE-2020-36427- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-36427
GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
- Record
UBUNTU-CVE-2020-36427- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-5680-1 No score
gThumb vulnerabilities
It was discovered that gThumb did not properly managed memory when processing certain image files. If a user were tricked into opening a specially crafted JPEG file, an attacker could possibly use this issue to cause gThumb to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-20326)
It was discovered that gThumb did not properly handled certain malformed image files. If a user were tricked into opening a specially crafted JPEG file, an attacker could possibly use this issue to cause gThumb to crash, resulting in a denial of service. (CVE-2020-36427)
- Record
USN-5680-1- Updated
- 2026-11-02
OSVUSN-5681-1 No score
gThumb vulnerabilities
It was discovered that gThumb did not properly managed memory under certain circumstances. An attacker could possibly use this issue to cause gThumb to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-18718)
It was discovered that gThumb did not properly managed memory when processing certain image files. If a user were tricked into opening a specially crafted JPEG file, an attacker could possibly use this issue to cause gThumb to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-20326)
It was discovered that gThumb did not properly handled certain malformed image files. If a user were tricked into opening a specially crafted JPEG file, an attacker could possibly use this issue to cause gThumb to crash, resulting in a denial of service. (CVE-2020-36427)
- Record
USN-5681-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gthumbDebian:12 |
before 3:3.11.1-0.1 | 3:3.11.1-0.1 |
gthumbDebian:13 |
before 3:3.11.1-0.1 | 3:3.11.1-0.1 |
gthumbDebian:14 |
before 3:3.11.1-0.1 | 3:3.11.1-0.1 |
gthumbUbuntu:Pro:16.04:LTS |
before 3:3.4.3-1ubuntu0.1~esm1, plus listed versions 3:3.3.1.is.3.2.8-0ubuntu33:3.4.1-23:3.4.1-33:3.4.1-43:3.4.3-1 |
3:3.4.3-1ubuntu0.1~esm1 |
gthumbUbuntu:Pro:18.04:LTS |
before 3:3.6.1-1ubuntu0.1~esm1, plus listed versions 3:3.5.2-2ubuntu13:3.5.3-13:3.5.4-13:3.6.0-13:3.6.0-23:3.6.0-33:3.6.0-43:3.6.1-1 |
3:3.6.1-1ubuntu0.1~esm1 |
gthumbUbuntu:20.04:LTS |
before 3:3.8.0-2.1ubuntu0.1, plus listed versions 3:3.8.0-23:3.8.0-2.13:3.8.0-2.1build1 |
3:3.8.0-2.1ubuntu0.1 |
gthumbUbuntu:20.04:LTS From an advisory covering 2 CVEs |
before 3:3.8.0-2.1ubuntu0.1, plus listed versions 3:3.8.0-23:3.8.0-2.13:3.8.0-2.1build1 |
3:3.8.0-2.1ubuntu0.1 |
gthumbUbuntu:Pro:16.04:LTS From an advisory covering 3 CVEs |
before 3:3.4.3-1ubuntu0.1~esm1, plus listed versions 3:3.3.1.is.3.2.8-0ubuntu33:3.4.1-23:3.4.1-33:3.4.1-43:3.4.3-1 |
3:3.4.3-1ubuntu0.1~esm1 |
gthumbUbuntu:Pro:18.04:LTS From an advisory covering 3 CVEs |
before 3:3.6.1-1ubuntu0.1~esm1, plus listed versions 3:3.5.2-2ubuntu13:3.5.3-13:3.5.4-13:3.6.0-13:3.6.0-23:3.6.0-33:3.6.0-43:3.6.1-1 |
3:3.6.1-1ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| 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-2020-36427 is a medium vulnerability (CVSS 5.5) in Gnome Gthumb, published July 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. Fixed in gthumb 3:3.11.1-0.1.