Description
An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations. This side channel could be sufficient for a local attacker to recover the plaintext. It requires the attacker to send a large number of messages for decryption, as described in "Everlasting ROBOT: the Marvin Attack" by Hubert Kario.
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 | mbedtls | 2.28.7-1 | — |
| Debian 13 | mbedtls | 2.28.7-1 | — |
| Debian 12 | mbedtls | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | mbedtls | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | mbedtls | No fix yet | — |
| Ubuntu Pro 20.04 LTS | mbedtls | No fix yet | — |
| Ubuntu Pro 18.04 LTS | mbedtls | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP5 | mbedtls | 2.28.7-bp155.2.3.1 | openSUSE-SU-2024:0037-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mbedtls | 3.5.2-1.1 | openSUSE-SU-2024:13639-1 |
| openSUSE Tumbleweed | mbedtls-2 | 2.28.7-1.1 | openSUSE-SU-2024:13640-1 |
| openSUSE Leap 15.5 | mbedtls | 2.28.7-bp155.2.3.1 | openSUSE-SU-2024:0037-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | mbedtls +2 | 2.28.7-r0 | — |
| Alpine v3.23 | mbedtls +1 | 2.28.7-r0 | — |
| Alpine v3.22 | mbedtls +1 | 2.28.7-r0 | — |
| Alpine v3.21 | mbedtls +1 | 2.28.7-r0 | — |
| Alpine v3.20 | mbedtls +1 | 2.28.7-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | mbedtls | 2.28.7-r0 | — |
| Alpine v3.18 | mbedtls | 2.28.7-r0 | — |
| Alpine v3.17 | mbedtls | 2.28.7-r0 | — |
| Alpine v3.16 | mbedtls | 2.28.7-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | hvloader | 1.0.1-6 | — |
Advisories 3
- openSUSE-SU-2024:0037-1 Security update for mbedtls SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13640-1 libmbedcrypto7-2.28.7-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13639-1 libeverest-3.5.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026