Description
A timing-based side-channel flaw exists in the perl-Crypt-OpenSSL-RSA package, which could be sufficient to recover plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | perl-Crypt-OpenSSL-RSA | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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 | libcrypt-openssl-rsa-perl | 0.35-1 | — |
| Debian 13 | libcrypt-openssl-rsa-perl | 0.35-1 | — |
| Debian 12 | libcrypt-openssl-rsa-perl | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libcrypt-openssl-rsa-perl | No fix yet | — |
| Ubuntu 26.04 LTS | libcrypt-openssl-rsa-perl | No fix yet | — |
| Ubuntu 25.10 | libcrypt-openssl-rsa-perl | No fix yet | — |
| Ubuntu 24.04 LTS | libcrypt-openssl-rsa-perl | No fix yet | — |
| Ubuntu 22.04 LTS | libcrypt-openssl-rsa-perl | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libcrypt-openssl-rsa-perl | No fix yet | — |
| Ubuntu 18.04 LTS | libcrypt-openssl-rsa-perl | No fix yet | — |
| Ubuntu 16.04 LTS | libcrypt-openssl-rsa-perl | No fix yet | — |
| Ubuntu 14.04 LTS | libcrypt-openssl-rsa-perl | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | perl-Crypt-OpenSSL-RSA | 0.28-150600.19.3.1 | SUSE-SU-2025:01884-1 |
| SLES 15 SP6 | perl-Crypt-OpenSSL-RSA | 0.28-150600.19.3.1 | SUSE-SU-2025:01884-1 |
| SLES 12 SP5 | perl-Crypt-OpenSSL-RSA | 0.28-10.3.1 | SUSE-SU-2025:01887-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | perl-Crypt-OpenSSL-RSA | 0.350.0-1.1 | openSUSE-SU-2025:15199-1 |
| openSUSE Leap 15.6 | perl-Crypt-OpenSSL-RSA | 0.28-150600.19.3.1 | SUSE-SU-2025:01884-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | perl-Crypt-OpenSSL-RSA | 0.28-7.amzn2.0.3 | ALAS2-2025-2942 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | perl-Crypt-OpenSSL-RSA | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | perl-Crypt-OpenSSL-RSA | No fix yet | — |
Advisories 4
- openSUSE-SU-2025:15199-1 perl-Crypt-OpenSSL-RSA-0.350.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01884-1 Security update for perl-Crypt-OpenSSL-RSA SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01887-1 Security update for perl-Crypt-OpenSSL-RSA SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2025-2942 Moderate: perl-Crypt-OpenSSL-RSA security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 30, 2025