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CVE-2023-6918

UNKNOWN
Published 2023-12-18T23:27:48.540Z
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CVSS Score

V3.1
3.7
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.487
Higher than 48.7% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
LOW

Description

A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Red Hat

Red Hat Enterprise Linux 8

Affected Versions:

0:0.9.6-14.el8
Red Hat

Red Hat Enterprise Linux 8

Affected Versions:

0:0.9.6-14.el8
Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

0:0.10.4-13.el9
Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

0:0.10.4-13.el9
Red Hat

Red Hat Enterprise Linux 6

Red Hat

Red Hat Enterprise Linux 7

Red Hat

Red Hat Enterprise Linux 7

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed LOW

GHSA-gpcj-wh2f-rr23

Advisory Details

A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.

CVSS Scoring

CVSS Score

2.5

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-6918
WEB https://access.redhat.com/errata/RHSA-2024:2504
WEB https://access.redhat.com/errata/RHSA-2024:3233
WEB https://access.redhat.com/security/cve/CVE-2023-6918
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2254997
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/LZQVUHWVWRH73YBXUQJOD6CKHDQBU3DM
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/MKQRBF3DWMWPH36LBCOBUTSIZRTPEZXB
WEB https://security.netapp.com/advisory/ntap-20250214-0009
WEB https://www.libssh.org/2023/12/18/libssh-0-10-6-and-libssh-0-9-8-security-releases
WEB https://www.libssh.org/security/advisories/CVE-2023-6918.txt

Advisory provided by GitHub Security Advisory Database. Published: December 19, 2023, Modified: February 15, 2025

References

https://access.redhat.com/errata/RHSA-2024:2504
https://access.redhat.com/errata/RHSA-2024:3233
https://access.redhat.com/security/cve/CVE-2023-6918
https://bugzilla.redhat.com/show_bug.cgi?id=2254997
https://www.libssh.org/2023/12/18/libssh-0-10-6-and-libssh-0-9-8-security-releases/
https://www.libssh.org/security/advisories/CVE-2023-6918.txt
Published: 2023-12-18T23:27:48.540Z
Last Modified: 2025-02-15T00:10:29.989Z
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