Vulnerability in Curl
CVE-2024-6197
libcurl's ASN1 parser has this utf8asn1str() function used for parsing an ASN.1 UTF-8 string. Itcan detect an invalid field and return error. Unfortunately, when doing so it also invokes `free()` on a 4 byte localstack buffer. Most modern…
EPSS: 0.043 (90.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Curl — versions 8.8.0, 8.7.1, 8.7.0
- Haxx Libcurl
Public proof-of-concept exploits
References
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Vendor Advisory)
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Vendor Advisory)
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Technical Description, Exploit, Issue Tracking)
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Mailing List, Third Party Advisory)
- 2499f714-1537-4658-8207-48ae4bb9eae9 (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-6197?
- CVE-2024-6197 is a high-severity vulnerability in Curl, classified under CWE-590 FREE OF MEMORY NOT ON THE HEAP. CVSS score: 7.5/10. Published 2024-07-24.
- How severe is CVE-2024-6197?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-6197 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.