CVE-2025-49601

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-49601
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-49601.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-49601
Downstream
Published
2025-07-04T15:15:22Z
Modified
2025-07-23T01:07:53.545154Z
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, mbedtlslmsimportpublickey 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 mbedtlslmsimportpublickey 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 mbedtlslmsimportpublickey reads this type indicator before validating the size of its input.

References

Affected packages

Alpine:v3.20 / mbedtls

Package

Name
mbedtls
Purl
pkg:apk/alpine/mbedtls?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.4-r0

Affected versions

2.*

2.0.0-r0
2.1.2-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.3.0-r0
2.4.0-r0
2.4.1-r0
2.4.2-r0
2.5.1-r0
2.6.0-r0
2.6.1-r0
2.7.0-r0
2.11.0-r0
2.12.0-r0
2.14.1-r0
2.16.0-r0
2.16.1-r0
2.16.1-r1
2.16.2-r0
2.16.3-r0
2.16.5-r0
2.16.6-r0
2.16.8-r0
2.16.9-r0
2.16.10-r0
2.16.10-r1
2.16.12-r0
2.16.12-r1
2.28.0-r0
2.28.1-r0
2.28.1-r1
2.28.2-r0
2.28.3-r0
2.28.3-r1
2.28.3-r2
2.28.3-r3
2.28.4-r0
2.28.5-r0
2.28.6-r0
2.28.7-r0
2.28.8-r0

3.*

3.6.0-r0
3.6.1-r0
3.6.2-r0
3.6.3-r0

Alpine:v3.21 / mbedtls

Package

Name
mbedtls
Purl
pkg:apk/alpine/mbedtls?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.4-r0

Affected versions

2.*

2.0.0-r0
2.1.2-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.3.0-r0
2.4.0-r0
2.4.1-r0
2.4.2-r0
2.5.1-r0
2.6.0-r0
2.6.1-r0
2.7.0-r0
2.11.0-r0
2.12.0-r0
2.14.1-r0
2.16.0-r0
2.16.1-r0
2.16.1-r1
2.16.2-r0
2.16.3-r0
2.16.5-r0
2.16.6-r0
2.16.8-r0
2.16.9-r0
2.16.10-r0
2.16.10-r1
2.16.12-r0
2.16.12-r1
2.28.0-r0
2.28.1-r0
2.28.1-r1
2.28.2-r0
2.28.3-r0
2.28.3-r1
2.28.3-r2
2.28.3-r3
2.28.4-r0
2.28.5-r0
2.28.6-r0
2.28.7-r0
2.28.8-r0

3.*

3.6.0-r0
3.6.1-r0
3.6.2-r0
3.6.3-r0

Alpine:v3.22 / mbedtls

Package

Name
mbedtls
Purl
pkg:apk/alpine/mbedtls?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.4-r0

Affected versions

2.*

2.0.0-r0
2.1.2-r0
2.2.0-r0
2.2.0-r1
2.2.1-r0
2.3.0-r0
2.4.0-r0
2.4.1-r0
2.4.2-r0
2.5.1-r0
2.6.0-r0
2.6.1-r0
2.7.0-r0
2.11.0-r0
2.12.0-r0
2.14.1-r0
2.16.0-r0
2.16.1-r0
2.16.1-r1
2.16.2-r0
2.16.3-r0
2.16.5-r0
2.16.6-r0
2.16.8-r0
2.16.9-r0
2.16.10-r0
2.16.10-r1
2.16.12-r0
2.16.12-r1
2.28.0-r0
2.28.1-r0
2.28.1-r1
2.28.2-r0
2.28.3-r0
2.28.3-r1
2.28.3-r2
2.28.3-r3
2.28.4-r0
2.28.5-r0
2.28.6-r0
2.28.7-r0
2.28.8-r0

3.*

3.6.0-r0
3.6.1-r0
3.6.2-r0
3.6.3-r0
3.6.3.1-r0

Debian:13 / mbedtls

Package

Name
mbedtls
Purl
pkg:deb/debian/mbedtls?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/mbed-tls/mbedtls

Affected ranges

Type
GIT
Repo
https://github.com/mbed-tls/mbedtls
Events
Introduced
8c89224991adff88d53cd380f42a2baa36f91454
Fixed
c765c831e5c2a0971410692f92f7a81d6ec65ec2

Affected versions

mbedtls-3.*

mbedtls-3.3.0
mbedtls-3.4.0
mbedtls-3.4.1
mbedtls-3.5.0
mbedtls-3.5.1
mbedtls-3.5.2
mbedtls-3.6.0
mbedtls-3.6.1
mbedtls-3.6.2
mbedtls-3.6.3

v3.*

v3.3.0
v3.4.0
v3.4.1
v3.5.0
v3.5.1
v3.5.2
v3.6.0
v3.6.1
v3.6.2
v3.6.3
v3.6.3.1