DEBIAN-CVE-2025-49601
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-49601
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-49601.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-49601
- Upstream
- Published
- 2025-07-04T15:15:22Z
- Modified
- 2026-08-27T23:05:33Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
- Summary
- [none]
- Details
-
In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not check that the input buffer is at least 4 bytes before reading a 32-bit field, allowing a possible out-of-bounds read on truncated input. Specifically, an out-of-bounds read in mbedtls_lms_import_public_key allows context-dependent attackers to trigger a crash or limited adjacent-memory disclosure by supplying a truncated LMS (Leighton-Micali Signature) public-key buffer under four bytes. An LMS public key starts with a 4-byte type indicator. The function mbedtls_lms_import_public_key reads this type indicator before validating the size of its input.
- References
Affected packages
Debian:13 / mbedtls
Package
- Name
- mbedtls
- Purl
- pkg:deb/debian/mbedtls?arch=source&distro=trixie
Debian:14 / mbedtls
Package
- Name
- mbedtls
- Purl
- pkg:deb/debian/mbedtls?arch=source&distro=forky