CVE-2021-25829
- Source
- https://cve.org/CVERecord?id=CVE-2021-25829
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-25829.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-25829
- Published
- 2021-03-01T16:15:14.150Z
- Modified
- 2025-11-14T11:31:03.653439Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An improper binary stream data handling issue was found in the [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5.6.3. Using this bug, an attacker is able to produce a denial of service attack that can eventually shut down the target server.
- References
-
- https://github.com/ONLYOFFICE/core
- https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Comments.h#L299
- https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Core.h#L161
- https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/NotesMaster.h#L148
- https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/NotesSlide.h#L141
- https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Presentation.h#L277
- https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Theme.h#L277
- https://github.com/ONLYOFFICE/core/blob/v5.6.4.10/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1722
- https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25829
- https://github.com/ONLYOFFICE/DocumentServer
Affected packages
Git / github.com/onlyoffice/documentserver
Affected ranges
- Type
- GIT
- Repo
- https://github.com/onlyoffice/documentserver
- Events
-
IntroducedLast affected
Affected versions
ONLYOFFICE-DocumentServer-4.*
ONLYOFFICE-DocumentServer-4.0.0-9
ONLYOFFICE-DocumentServer-4.0.1-34
ONLYOFFICE-DocumentServer-4.0.2-4
ONLYOFFICE-DocumentServer-4.0.3-3
ONLYOFFICE-DocumentServer-4.1.2-37
ONLYOFFICE-DocumentServer-4.1.4-3
ONLYOFFICE-DocumentServer-4.1.5-1
ONLYOFFICE-DocumentServer-4.1.6-3
ONLYOFFICE-DocumentServer-4.1.8-1
ONLYOFFICE-DocumentServer-4.2.0
ONLYOFFICE-DocumentServer-4.2.1
ONLYOFFICE-DocumentServer-4.2.10
ONLYOFFICE-DocumentServer-4.2.11
ONLYOFFICE-DocumentServer-4.2.3
ONLYOFFICE-DocumentServer-4.2.4
ONLYOFFICE-DocumentServer-4.2.5
ONLYOFFICE-DocumentServer-4.2.7
ONLYOFFICE-DocumentServer-4.2.8
ONLYOFFICE-DocumentServer-4.2.9
ONLYOFFICE-DocumentServer-4.3.0
ONLYOFFICE-DocumentServer-4.3.1
ONLYOFFICE-DocumentServer-4.3.2
ONLYOFFICE-DocumentServer-4.3.3
ONLYOFFICE-DocumentServer-4.3.4
ONLYOFFICE-DocumentServer-4.3.5
ONLYOFFICE-DocumentServer-4.3.6
ONLYOFFICE-DocumentServer-4.4.1
ONLYOFFICE-DocumentServer-4.4.2
ONLYOFFICE-DocumentServer-4.4.3
ONLYOFFICE-DocumentServer-5.*
ONLYOFFICE-DocumentServer-5.0.3
ONLYOFFICE-DocumentServer-5.0.4
ONLYOFFICE-DocumentServer-5.0.5
ONLYOFFICE-DocumentServer-5.0.6
ONLYOFFICE-DocumentServer-5.0.7
ONLYOFFICE-DocumentServer-5.1.0
ONLYOFFICE-DocumentServer-5.1.1
ONLYOFFICE-DocumentServer-5.1.2
ONLYOFFICE-DocumentServer-5.1.3
ONLYOFFICE-DocumentServer-5.1.4
ONLYOFFICE-DocumentServer-5.1.5
ONLYOFFICE-DocumentServer-5.2.0
ONLYOFFICE-DocumentServer-5.2.2
ONLYOFFICE-DocumentServer-5.2.3
ONLYOFFICE-DocumentServer-5.2.4
ONLYOFFICE-DocumentServer-5.2.6
ONLYOFFICE-DocumentServer-5.2.7
ONLYOFFICE-DocumentServer-5.2.8
ONLYOFFICE-DocumentServer-5.3.0
ONLYOFFICE-DocumentServer-5.3.1
ONLYOFFICE-DocumentServer-5.3.2
ONLYOFFICE-DocumentServer-5.3.4
ONLYOFFICE-DocumentServer-5.4.0-2
ONLYOFFICE-DocumentServer-5.4.1
ONLYOFFICE-DocumentServer-5.4.2
ONLYOFFICE-DocumentServer-5.5.0
ONLYOFFICE-DocumentServer-5.5.1
ONLYOFFICE-DocumentServer-5.5.3
ONLYOFFICE-DocumentServer-5.6.0
ONLYOFFICE-DocumentServer-5.6.1
ONLYOFFICE-DocumentServer-5.6.2
ONLYOFFICE-DocumentServer-5.6.3