Double free in cURL - CVE-2024-6197
Published: July 24, 2024
Vulnerability identifier: #VU94715
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-6197
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: curl.haxx.se
Affected software:
cURL
cURL
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in ASN1 parser within the utf8asn1str() function. A remote attacker can pass specially crafted TLS certificate to the application, trigger double free error and execute arbitrary code on the target system.
The vulnerable code can only be reached when curl is built to use GnuTLS, wolfSSL, Schannel or Secure Transport.
How to mitigate CVE-2024-6197
Install updates from vendor's website.