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CVE-2022-2121

OFFIS DCMTK NULL Pointer Dereference

7.5 HighFix available

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Attack profile

How easy it is to exploit

Attack vector
Adjacent network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.78%Down 0.1 points since Jun 25, 2022
90%50%10%1%

What each source reports

CVE List Score used 7.5

OFFIS DCMTK NULL Pointer Dereference

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Record
CVE-2022-2121
CVSS 3.1
7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-476
Updated
2026-11-02
EUVDEUVD-2022-34407 7.5

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Record
EUVD-2022-34407
CVSS 3.1
7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-jrq9-r9fx-4557 6.5

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while...

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Record
GHSA-jrq9-r9fx-4557
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
NVD 7.5

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Record
CVE-2022-2121
CVSS 3.1
7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
3.3 LowAV:A/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-476
Updated
2026-11-02
OSV 7.5

OFFIS DCMTK NULL Pointer Dereference

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Record
CVE-2022-2121
CVSS 3.1
7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-476
Updated
2026-11-02
OSVDEBIAN-CVE-2022-2121 6.5

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Record
DEBIAN-CVE-2022-2121
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
Show 6 moreShow less
OSVUBUNTU-CVE-2022-2121 7.5

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Record
UBUNTU-CVE-2022-2121
CVSS 3.1
7.5 HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2023-0083 No score

Updated dcmtk packages fix security vulnerability

Jinsheng Ba discovered that DCMTK incorrectly handled certain requests. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2021-41687, CVE-2021-41688, CVE-2021-41689, and CVE-2021-41690)

Sharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code. (CVE-2022-2119 and CVE-2022-2120)

Sharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled pointers. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2022-2121)

It was discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2022-43272)

Record
MGASA-2023-0083
Updated
2026-11-02
OSVopenSUSE-SU-2023:0108-1 No score

Security update for dcmtk

This update for dcmtk fixes the following issues:

  • CVE-2022-43272: Fixed memory leak via the T_ASC_Association object (boo#1206070)

  • Update to 3.6.7 (boo#1208639, boo#1208638, boo#1208637, CVE-2022-2121, CVE-2022-2120, CVE-2022-2119)

    • CVE-2022-2121: Fixed possible DoS via NULL pointer dereference
    • CVE-2022-2120: Fixed relative path traversal vulnerability
    • CVE-2022-2119: Fixed path traversal vulnerability

    See DOCS/CHANGES.367 for the full list of changes

    • Updated code definitions for DICOM 2022b
    • Fixed possible NULL pointer dereference
Record
openSUSE-SU-2023:0108-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:12925-1 No score

dcmtk-3.6.7-2.1 on GA media

These are all security issues fixed in the dcmtk-3.6.7-2.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12925-1
Updated
2026-11-02
OSVUSN-5882-1 No score

dcmtk vulnerabilities

Gjoko Krstic discovered that DCMTK incorrectly handled buffers. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2015-8979)

Omar Ganiev discovered that DCMTK incorrectly handled buffers. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-1010228)

Jinsheng Ba discovered that DCMTK incorrectly handled certain requests. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2021-41687, CVE-2021-41688, CVE-2021-41689, and CVE-2021-41690)

Sharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-2119 and CVE-2022-2120)

Sharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled pointers. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-2121)

It was discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2022-43272)

Record
USN-5882-1
Updated
2026-11-02
OSVUSN-7010-1 No score

dcmtk vulnerabilities

Jinsheng Ba discovered that DCMTK incorrectly handled certain requests. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-41687, CVE-2021-41688, CVE-2021-41689, CVE-2021-41690)

Sharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled pointers. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2022-2121)

It was discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2022-43272)

It was discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code. This issue was only addressed in Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2024-28130)

It was discovered that DCMTK incorrectly handled memory when processing an invalid incoming DIMSE message. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-34508, CVE-2024-34509)

Record
USN-7010-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
dcmtk
Debian:12
before 3.6.7-1
3.6.7-1
dcmtk
Debian:13
before 3.6.7-1
3.6.7-1
dcmtk
Debian:14
before 3.6.7-1
3.6.7-1
dcmtk
Debian:10
From an advisory covering 9 CVEs
before 3.6.4-2.1+deb10u1, plus listed versions
3.6.4-2.1
3.6.4-2.1+deb10u1
dcmtk
Debian:11
From an advisory covering 11 CVEs
before 3.6.5-1+deb11u1, plus listed versions
3.6.5-1
3.6.5-1+deb11u1
dcmtk
Mageia:8
From an advisory covering 8 CVEs
before 3.6.5-3.1.mga8
3.6.5-3.1.mga8
dcmtk
Ubuntu:Pro:16.04:LTS
before 3.6.1~20150924-5ubuntu0.1~esm1, plus listed versions
3.6.0-15.13.6.1~20150629-53.6.1~20150924-43.6.1~20150924-5
3.6.1~20150924-5ubuntu0.1~esm1
dcmtk
Ubuntu:Pro:18.04:LTS
before 3.6.2-3ubuntu0.1~esm1, plus listed versions
3.6.2-23.6.2-2build13.6.2-33.6.2-3build13.6.2-3build23.6.2-3build3
3.6.2-3ubuntu0.1~esm1
dcmtk
Ubuntu:20.04:LTS
before 3.6.4-2.1ubuntu0.1, plus listed versions
3.6.4-2.13.6.4-2.1build13.6.4-2.1build2
3.6.4-2.1ubuntu0.1
dcmtk
Ubuntu:Pro:20.04:LTS
before 3.6.4-2.1ubuntu0.1~esm1, plus listed versions
3.6.4-2.13.6.4-2.1build13.6.4-2.1build2
3.6.4-2.1ubuntu0.1~esm1
Show 16 moreShow less
Affected packages
PackageAffectedFixed
dcmtk
Ubuntu:Pro:22.04:LTS
before 3.6.6-5ubuntu0.1~esm1, plus listed versions
3.6.5-13.6.6-3ubuntu13.6.6-3ubuntu23.6.6-43.6.6-5
3.6.6-5ubuntu0.1~esm1
dcmtk
Ubuntu:Pro:24.04:LTS
All versions, plus listed versions
3.6.7-93.6.7-9.1build23.6.7-9.1build33.6.7-9.1build43.6.7-9.1ubuntu0.1~esm1
None known
dcmtk
Ubuntu:25.10
All versions, plus listed versions
3.6.9-43.6.9-53.6.9-5build1
None known
dcmtk
Ubuntu:26.10
All versions, plus listed versions
3.7.0+really3.6.9-13.7.0+really3.7.0-23.7.0+really3.7.0-53.7.0+really3.7.0-63.7.0+really3.7.0-7ubuntu1
None known
dcmtk
Ubuntu:26.04:LTS
All versions, plus listed versions
3.6.9-5build13.6.9-63.7.0+really3.6.9-1
None known
dcmtk
Ubuntu:Pro:16.04:LTS
From an advisory covering 10 CVEs
before 3.6.1~20150924-5ubuntu0.1~esm1, plus listed versions
3.6.0-15.13.6.1~20150629-53.6.1~20150924-43.6.1~20150924-5
3.6.1~20150924-5ubuntu0.1~esm1
dcmtk
Ubuntu:Pro:18.04:LTS
From an advisory covering 10 CVEs
before 3.6.2-3ubuntu0.1~esm1, plus listed versions
3.6.2-23.6.2-2build13.6.2-33.6.2-3build13.6.2-3build23.6.2-3build3
3.6.2-3ubuntu0.1~esm1
dcmtk
Ubuntu:Pro:20.04:LTS
From an advisory covering 10 CVEs
before 3.6.4-2.1ubuntu0.1~esm1, plus listed versions
3.6.4-2.13.6.4-2.1build13.6.4-2.1build2
3.6.4-2.1ubuntu0.1~esm1
dcmtk
Ubuntu:Pro:22.04:LTS
From an advisory covering 10 CVEs
before 3.6.6-5ubuntu0.1~esm1, plus listed versions
3.6.5-13.6.6-3ubuntu13.6.6-3ubuntu23.6.6-43.6.6-5
3.6.6-5ubuntu0.1~esm1
dcmtk
Ubuntu:Pro:16.04:LTS
From an advisory covering 9 CVEs
before 3.6.1~20150924-5ubuntu0.1~esm2, plus listed versions
3.6.0-15.13.6.1~20150629-53.6.1~20150924-43.6.1~20150924-53.6.1~20150924-5ubuntu0.1~esm1
3.6.1~20150924-5ubuntu0.1~esm2
dcmtk
Ubuntu:Pro:18.04:LTS
From an advisory covering 9 CVEs
before 3.6.2-3ubuntu0.1~esm2, plus listed versions
3.6.2-23.6.2-2build13.6.2-33.6.2-3build13.6.2-3build23.6.2-3build33.6.2-3ubuntu0.1~esm1
3.6.2-3ubuntu0.1~esm2
dcmtk
Ubuntu:20.04:LTS
From an advisory covering 9 CVEs
before 3.6.4-2.1ubuntu0.1, plus listed versions
3.6.4-2.13.6.4-2.1build13.6.4-2.1build2
3.6.4-2.1ubuntu0.1
dcmtk
Ubuntu:Pro:22.04:LTS
From an advisory covering 9 CVEs
before 3.6.6-5ubuntu0.1~esm2, plus listed versions
3.6.5-13.6.6-3ubuntu13.6.6-3ubuntu23.6.6-43.6.6-53.6.6-5ubuntu0.1~esm1
3.6.6-5ubuntu0.1~esm2
dcmtk
Ubuntu:Pro:24.04:LTS
From an advisory covering 9 CVEs
before 3.6.7-9.1ubuntu0.1~esm1, plus listed versions
3.6.7-93.6.7-9.1build23.6.7-9.1build33.6.7-9.1build4
3.6.7-9.1ubuntu0.1~esm1
dcmtk
SUSE:Package Hub 15 SP4
From an advisory covering 4 CVEs
before 3.6.7-bp154.2.3.1
3.6.7-bp154.2.3.1
dcmtk
openSUSE:Leap 15.4
From an advisory covering 4 CVEs
before 3.6.7-bp154.2.3.1
3.6.7-bp154.2.3.1

History

History
RecordedChangedSources
affected, factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2022-2121 is a high vulnerability (CVSS 7.5) in Offis Dcmtk, published June 24, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. Fixed in dcmtk 3.6.7-1.

References

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