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 ListNo 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-2020-23955No 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-w8gjNo 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-5680-1No 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-5681-1No 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.