CVE-2023-28319
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 2.5%
exploitation probability
2.5%top 16% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
n/a · https://github.com/curl/curlReferences
http://seclists.org/fulldisclosure/2023/Jul/47http://seclists.org/fulldisclosure/2023/Jul/48http://seclists.org/fulldisclosure/2023/Jul/52https://hackerone.com/reports/1913733https://security.gentoo.org/glsa/202310-12https://security.netapp.com/advisory/ntap-20230609-0009/https://support.apple.com/kb/HT213843https://support.apple.com/kb/HT213844https://support.apple.com/kb/HT213845