Description
Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pair
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 | 3.6.2-1 | — |
| Debian 13 | mbedtls | 3.6.2-1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mbedtls | 3.6.2-1.1 | openSUSE-SU-2024:14419-1 |
| openSUSE Leap 16.0 | mbedtls | 3.6.6-bp160.1.1 | openSUSE-SU-2026:21144-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | mbedtls +1 | 3.6.2-r0 | — |
| Alpine v3.23 | mbedtls | 3.6.2-r0 | — |
| Alpine v3.22 | mbedtls | 3.6.2-r0 | — |
| Alpine v3.21 | mbedtls | 3.6.2-r0 | — |
| Alpine v3.20 | mbedtls | 3.6.2-r0 | — |
Advisories 2
- openSUSE-SU-2026:21144-1 Security update for mbedtls SUSE / openSUSE Security Updates · Jun 30, 2026
- openSUSE-SU-2024:14419-1 libeverest-3.6.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026