CVE-2025-47917
- Source
- https://cve.org/CVERecord?id=CVE-2025-47917
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-47917.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-47917
- Downstream
- Related
- Published
- 2025-07-20T00:00:00Z
- Modified
- 2026-08-19T11:48:44Z
- Severity
-
- 8.9 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtls_x509_string_to_names() takes a head argument that is documented as an output argument. The documentation does not suggest that the function will free that pointer; however, the function does call mbedtls_asn1_free_named_data_list() on that argument, which performs a deep free(). As a result, application code that uses this function (relying only on documented behavior) is likely to still hold pointers to the memory blocks that were freed, resulting in a high risk of use-after-free or double-free. In particular, the two sample programs x509/cert_write and x509/cert_req are affected (use-after-free if the san string contains more than one DN).
- Database specific
{ "cna_assigner": "mitre", "cwe_ids": [ "CWE-416" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47917.json", "unresolved_ranges": [ { "extracted_events": [ { "fixed": "3.6.4" } ], "source": "AFFECTED_FIELD" }, { "extracted_events": [ { "fixed": "3.6.4" } ], "source": "CPE_FIELD" }, { "extracted_events": [ { "fixed": "3.6.4" } ], "source": "DESCRIPTION" } ] }- References
-
- https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html
- https://lists.debian.org/debian-lts-announce/2025/08/msg00025.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47917.json
- https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-7.md
- https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
- https://nvd.nist.gov/vuln/detail/CVE-2025-47917
Affected packages
Git / github.com/Mbed-TLS/mbedtls
Affected ranges
- Type
- GIT
- Repo
- https://github.com/Mbed-TLS/mbedtls
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "3.6.4" } ], "source": "CPE_RANGE" }