CVE-2016-6129 The rsa_verify_hash_ex function in rsa_verify_hash.c in LibTomCrypt, as used in OP-TEE before 2.2.0, does not validate that the message length is equal to the ASN.1 encoded data length, which makes it...
HighCVSS 7.5
EPSS 0.77%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The rsa_verify_hash_ex function in rsa_verify_hash.c in LibTomCrypt, as used in OP-TEE before 2.2.0, does not validate that the message length is equal to the ASN.1 encoded data length, which makes it easier for remote attackers to forge RSA signatures or public certificates by leveraging a Bleichenbacher signature forgery attack.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libtomcrypt(Debian:12) | < 1.17-8 | 1.17-8 |
| debian/libtomcrypt(Debian:13) | < 1.17-8 | 1.17-8 |
| debian/libtomcrypt(Debian:14) | < 1.17-8 | 1.17-8 |
| TrustedFirmware op-tee | < 2.2.0 | 2.2.0 |
| libtomcrypt | <= 1.17 | No fix listed |
References
- Debian Security Tracker CVE-2016-6129 vendor-advisory
- bugzilla.redhat.com issue-tracking patch
- github.com issue-tracking patch third-party-advisory
- www.op-tee.org vendor-advisory
- bugs.debian.org issue-tracking