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CVE-2023-38039

high CVSS 7.5 EPSS 58.1%

When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory.

Versions it affects

Software versions checked with the free lookup that CVE-2023-38039 applies to, and the release that fixes it where the sources name one.

curl 8.1.2 fixed in 3.0.1.1

At a glance

Severity
High
CVSS base score
7.5 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
58.1% probability of exploitation in the next 30 days, higher than 99% of scored vulnerabilities
Weakness
CWE-201
Published
2023-09-15
NVD CVE.org

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