What is CVE-2023-3603?

CVE-2023-3603 is a low-severity vulnerability in Libssh, classified under NULL Pointer Dereference. CVSS score: 3.1/10. Published 2023-07-21.

How severe is CVE-2023-3603?

Low severity. CVSS v3 base score is 3.1 out of 10.

Is CVE-2023-3603 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Libssh

CVE-2023-3603

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 c…

EPSS: 0.009 (55.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2023-3603?: CVE-2023-3603 is a low-severity vulnerability in Libssh, classified under NULL Pointer Dereference. CVSS score: 3.1/10. Published 2023-07-21.
How severe is CVE-2023-3603?: Low severity. CVSS v3 base score is 3.1 out of 10.
Is CVE-2023-3603 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.