Home/CVE/An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memor
CVE

CVE-2020-22218

An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memor

An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.

HIGH · CVSS 7.5 EPSS 0.00078
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
▤

Affected Products & Versions

1
libssh2all versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Aug 2023 · 07:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

8
siemens-csafSSA-398330
suse-csafSUSE-SU-2023:3738-1
usnUSN-6371-1
suse-csafSUSE-SU-2023:3555-1
msrcCVE-2020-22218
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/libssh2/libssh2/pull/476Issue TrackingPatch
https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html
https://security.netapp.com/advisory/ntap-20231006-0002/
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