Description
A flaw was found in libtpms in versions before 0.8.2. The commonly used integration of libtpms with OpenSSL contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libtpms | libtpms 0.8.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libtpms | 0.8.2-1 | — |
| Debian 13 | libtpms | 0.8.2-1 | — |
| Debian 12 | libtpms | 0.8.2-1 | — |