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CVE-2023-28319

UNKNOWN
Published 2023-05-26T00:00:00
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Expert Analysis

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CVSS Score

V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.003
probability
of exploitation in the wild

There is a 0.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.544
Higher than 54.4% of all CVEs

Attack Vector Metrics

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

Impact Metrics

Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Description

A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-6xq7-qqp2-9mmc

Advisory Details

A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-28319
WEB https://hackerone.com/reports/1913733
WEB https://security.gentoo.org/glsa/202310-12
WEB https://security.netapp.com/advisory/ntap-20230609-0009
WEB https://support.apple.com/kb/HT213843
WEB https://support.apple.com/kb/HT213844
WEB https://support.apple.com/kb/HT213845
WEB http://seclists.org/fulldisclosure/2023/Jul/47
WEB http://seclists.org/fulldisclosure/2023/Jul/48
WEB http://seclists.org/fulldisclosure/2023/Jul/52

Advisory provided by GitHub Security Advisory Database. Published: May 26, 2023, Modified: April 4, 2024

References

https://hackerone.com/reports/1913733
https://security.netapp.com/advisory/ntap-20230609-0009/
https://support.apple.com/kb/HT213843
https://support.apple.com/kb/HT213844
https://support.apple.com/kb/HT213845
http://seclists.org/fulldisclosure/2023/Jul/52
http://seclists.org/fulldisclosure/2023/Jul/48
http://seclists.org/fulldisclosure/2023/Jul/47
https://security.gentoo.org/glsa/202310-12
Published: 2023-05-26T00:00:00
Last Modified: 2025-01-15T16:00:16.843Z
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