CVE-2023-28319
7.5CVSSHIGH
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
and 23 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://hackerone.com/reports/1913733
hackerone.com
https://security.netapp.com/advisory/ntap-20230609-0009/
security.netapp.com
https://support.apple.com/kb/HT213843
support.apple.com
and 30 more references View all →
Timeline
Published
May 26, 2023
Last Updated
Jan 15, 2025
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