Vulnerability Details CVE-2023-27537
A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 17.4%
CVSS Severity
CVSS v3 Score 5.9
References
Products affected by CVE-2023-27537
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cpe:2.3:a:haxx:libcurl:7.88.0
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cpe:2.3:a:haxx:libcurl:7.88.1
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cpe:2.3:a:netapp:active_iq_unified_manager:-
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cpe:2.3:a:netapp:clustered_data_ontap:9.0
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cpe:2.3:a:splunk:universal_forwarder:8.2.0
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cpe:2.3:a:splunk:universal_forwarder:8.2.10
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cpe:2.3:a:splunk:universal_forwarder:8.2.11
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cpe:2.3:a:splunk:universal_forwarder:8.2.6
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cpe:2.3:a:splunk:universal_forwarder:8.2.7
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cpe:2.3:a:splunk:universal_forwarder:8.2.8
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cpe:2.3:a:splunk:universal_forwarder:8.2.9
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cpe:2.3:a:splunk:universal_forwarder:9.0.0
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cpe:2.3:a:splunk:universal_forwarder:9.0.1
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cpe:2.3:a:splunk:universal_forwarder:9.0.2
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cpe:2.3:a:splunk:universal_forwarder:9.0.3
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cpe:2.3:a:splunk:universal_forwarder:9.0.4
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cpe:2.3:a:splunk:universal_forwarder:9.0.5
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cpe:2.3:a:splunk:universal_forwarder:9.1.0
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cpe:2.3:h:netapp:h300s:-
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cpe:2.3:h:netapp:h410s:-
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cpe:2.3:h:netapp:h500s:-
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cpe:2.3:h:netapp:h700s:-
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cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-
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cpe:2.3:o:netapp:h300s_firmware:-
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cpe:2.3:o:netapp:h410s_firmware:-
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cpe:2.3:o:netapp:h500s_firmware:-
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cpe:2.3:o:netapp:h700s_firmware:-