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7.8
CVSSv2

CVE-2021-25829

Published: 01/03/2021 Updated: 05/03/2021
CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 694
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
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Vulnerability Summary

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.

Vulnerability Trend

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onlyoffice document server

References

NVD-CWE-noinfohttps://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25829https://github.com/ONLYOFFICE/corehttps://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Comments.h#L299https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Core.h#L161https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/NotesMaster.h#L148https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/NotesSlide.h#L141https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Presentation.h#L277https://github.com/ONLYOFFICE/core/blob/c1e4a2ce33bdcfab29d670f5fdb10fc63cf5fd6a/ASCOfficePPTXFile/PPTXFormat/Theme.h#L277https://github.com/ONLYOFFICE/core/blob/v5.6.4.10/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1722https://github.com/ONLYOFFICE/DocumentServerhttps://nvd.nist.gov
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2006-4304CVE-2024-4240arbitrary CVE-2024-31601XSSCVE-2023-20198CVE-2024-4256CVE-2024-3342encryption
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