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CVE-2020-23109

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in...

8.1 HighFix available

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

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
None
Availability
High

Exploit likelihood

1.34%Up 0.8 points since Nov 4, 2021
90%50%10%1%

What each source reports

NVD Score used 8.1

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Record
CVE-2020-23109
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CVSS 2.0
5.8 MediumAV:N/AC:M/Au:N/C:P/I:N/A:P
Weakness
CWE-120
Updated
2026-11-02
CVE List No score

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Record
CVE-2020-23109
Updated
2026-11-02
EUVDEUVD-2020-15863 No score

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Record
EUVD-2020-15863
Updated
2026-11-03
GitHub AdvisoriesGHSA-ccjv-v7wq-hv5p No score

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in...

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Record
GHSA-ccjv-v7wq-hv5p
Weakness
CWE-120
Updated
2026-11-02
OSV 8.1

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Record
CVE-2020-23109
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-23109 8.1

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Record
DEBIAN-CVE-2020-23109
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-23109 8.1

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Record
UBUNTU-CVE-2020-23109
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:12451-1 No score

gdk-pixbuf-loader-libheif-1.12.0-5.1 on GA media

These are all security issues fixed in the gdk-pixbuf-loader-libheif-1.12.0-5.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12451-1
Updated
2026-11-02
OSVUSN-6847-1 No score

libheif vulnerabilities

It was discovered that libheif incorrectly handled certain image data. An attacker could possibly use this issue to crash the program, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-11471)

Reza Mirzazade Farkhani discovered that libheif incorrectly handled certain image data. An attacker could possibly use this issue to crash the program, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-23109)

Eugene Lim discovered that libheif incorrectly handled certain image data. An attacker could possibly use this issue to crash the program, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-0996)

Min Jang discovered that libheif incorrectly handled certain image data. An attacker could possibly use this issue to crash the program, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-29659)

Yuchuan Meng discovered that libheif incorrectly handled certain image data. An attacker could possibly use this issue to crash the program, resulting in a denial of service. This issue only affected Ubuntu 23.10. (CVE-2023-49460, CVE-2023-49462, CVE-2023-49463, CVE-2023-49464)

Record
USN-6847-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libheif
Debian:12
 before 1.8.0-1
1.8.0-1
libheif
Debian:13
 before 1.8.0-1
1.8.0-1
libheif
Debian:14
 before 1.8.0-1
1.8.0-1
libheif
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
1.1.0-21.1.0-2ubuntu0.1~esm11.1.0-2ubuntu0.1~esm21.1.0-2ubuntu0.1~esm31.1.0-2ubuntu0.1~esm41.1.0-2ubuntu0.1~esm5
 None known
libheif
Ubuntu:Pro:20.04:LTS
 before 1.6.1-1ubuntu0.1~esm1, plus listed versions
1.5.0-1build11.5.1-11.5.1-1build11.6.0-11.6.1-11.6.1-1build1
1.6.1-1ubuntu0.1~esm1
libheif
Ubuntu:Pro:18.04:LTS
 before 1.1.0-2ubuntu0.1~esm1, plus listed versions
1.1.0-2
1.1.0-2ubuntu0.1~esm1
libheif
Ubuntu:Pro:22.04:LTS
 before 1.12.0-2ubuntu0.1~esm1, plus listed versions
1.11.0-11.12.0-2build1
1.12.0-2ubuntu0.1~esm1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-23109 is a high vulnerability (CVSS 8.1) in Struktur Libheif, published November 3, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.34%, the 71st percentile. Fixed in libheif 1.8.0-1.

References

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