CVE-2023-3603

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

A

missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions. The malicious client can request up to 4GB SFTP reads, causing allocation of up to 4GB buffers, which was not being checked for failure. This will likely crash the authenticated user's sftp server connection (if implemented as forking as recommended). For thread-based servers, this might also cause DoS for legitimate users. Given this code is not in any released versions, no security releases have been issued.

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2023-3603	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2221791	Issue Tracking Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-3603	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2221791	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*

History

21 Nov 2024, 08:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~6.5~~	v2 : unknown v3 : 3.1
References	~~() https://access.redhat.com/security/cve/CVE-2023-3603 - Third Party Advisory~~	() https://access.redhat.com/security/cve/CVE-2023-3603 - Third Party Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2221791 - Issue Tracking, Third Party Advisory~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2221791 - Issue Tracking, Third Party Advisory

23 May 2024, 17:56

Type	Values Removed	Values Added
CWE	~~CWE-770~~
CPE	cpe:2.3:a:libssh:libssh:-:::::::*	cpe:2.3:a:libssh:libssh::::::::

Information

Published : 2023-07-21 20:15

Updated : 2024-11-21 08:17

NVD link : CVE-2023-3603

Mitre link : CVE-2023-3603

CVE.ORG link : CVE-2023-3603

JSON object : View

Products Affected

libssh

CWE

CWE-476

NULL Pointer Dereference

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