Description
A flaw was found in OpenSSL. When configured to use an RSA key with exponent 3, OpenSSL improperly removes PKCS-1 padding before generating a hash. This allows remote attackers to forge PKCS #1 v1.5 signatures. Consequently, OpenSSL may incorrectly verify X.509 and other certificates, leading to a bypass of trust and authentication mechanisms.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 3 | — | — |
| Red Hat | Red Hat Enterprise Linux 4 | — | — |
| Red Hat | Red Hat Network Satellite Server v 4.2 | — | — |
| Red Hat | Red Hat Network Satellite Server v 4.2 (RHEL3) | — | — |
| Red Hat | Red Hat Network Satellite Server v 5.0 | — | — |
| Red Hat | Red Hat Network Satellite Server v 5.1 | — | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| 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 | — | — |
| Red Hat | Red Hat JBoss Core Services | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
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 | openssl | 0.9.8b-3 | — |
| Debian 13 | openssl | 0.9.8b-3 | — |
| Debian 12 | openssl | 0.9.8b-3 | — |
| Debian 3.1 | openssl | 0.9.7e-3sarge2 | DSA-1173-1 |
| Debian 3.1 | openssl096 | 0.9.6m-1sarge2 | DSA-1174-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Network Satellite 5 | rhn-solaris-bootstrap | 5.0.2-3 | RHSA-2008:0629, RHSA-2008:0264 |
| Red Hat Network Satellite 5 | rhn_solaris_bootstrap_5_0_2_3 +1 | 1-0 | RHSA-2008:0629, RHSA-2008:0264 |
| Red Hat Network Satellite 4 | rhn-solaris-bootstrap | 5.0.2-3 | RHSA-2008:0525 |
| Red Hat Network Satellite 4 | rhn_solaris_bootstrap_5_0_2_3 | 1-0 | RHSA-2008:0525 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bind | 9.16.20-1.4 | openSUSE-SU-2024:10650-1 |
| openSUSE Tumbleweed | openssl-1_0_0 | 1.0.2u-6.2 | openSUSE-SU-2024:11126-1 |
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
| openSUSE Tumbleweed | openvpn | 2.5.3-1.2 | openSUSE-SU-2024:11128-1 |
Advisories 9
- DSA-1173-1 openssl - cryptographic weakness Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1174-1 openssl096 - cryptographic weakness Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11128-1 openvpn-2.5.3-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10650-1 bind-9.16.20-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11126-1 libopenssl-1_0_0-devel-1.0.2u-6.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2008:0629 Red Hat Security Advisory: Red Hat Network Satellite Server Solaris client security update Red Hat Security Advisories (RHSA) · Jan 14, 2026
- RHSA-2008:0525 Red Hat Security Advisory: Red Hat Network Satellite Server Solaris client security update Red Hat Security Advisories (RHSA) · Jan 14, 2026
- RHSA-2008:0264 Red Hat Security Advisory: Red Hat Network Satellite Server Solaris client security update Red Hat Security Advisories (RHSA) · Jan 14, 2026
- openSUSE-SU-2024:11127-1 libopenssl-1_1-devel-1.1.1l-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- http://dev2dev.bea.com/pub/advisory/238
- http://docs.info.apple.com/article.html?artnum=304829
- http://docs.info.apple.com/article.html?artnum=307177
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01070495
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771
- http://itrc.hp.com/service/cki/docDisplay.do?docId=c00849540
- http://jvn.jp/en/jp/JVN51615542/index.html
- http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000079.html
- http://lists.apple.com/archives/Security-announce/2007/Dec/msg00001.html
- http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html
- http://lists.vmware.com/pipermail/security-announce/2008/000008.html
- http://marc.info/?l=bind-announce&m=116253119512445&w=2
- http://marc.info/?l=bugtraq&m=130497311408250&w=2
- http://openvpn.net/changelog.html
- http://secunia.com/advisories/21709
- http://secunia.com/advisories/21767
- http://secunia.com/advisories/21776
- http://secunia.com/advisories/21778
- http://secunia.com/advisories/21785
- http://secunia.com/advisories/21791
- http://secunia.com/advisories/21812
- http://secunia.com/advisories/21823
- http://secunia.com/advisories/21846
- http://secunia.com/advisories/21852
- http://secunia.com/advisories/21870
- http://secunia.com/advisories/21873
- http://secunia.com/advisories/21906
- http://secunia.com/advisories/21927
- http://secunia.com/advisories/21930
- http://secunia.com/advisories/21982
- http://secunia.com/advisories/22036
- http://secunia.com/advisories/22044
- http://secunia.com/advisories/22066
- http://secunia.com/advisories/22161
- http://secunia.com/advisories/22226
- http://secunia.com/advisories/22232
- http://secunia.com/advisories/22259
- http://secunia.com/advisories/22260
- http://secunia.com/advisories/22284
- http://secunia.com/advisories/22325
- http://secunia.com/advisories/22446
- http://secunia.com/advisories/22509
- http://secunia.com/advisories/22513
- http://secunia.com/advisories/22523
- http://secunia.com/advisories/22545
- http://secunia.com/advisories/22585
- http://secunia.com/advisories/22671
- http://secunia.com/advisories/22689
- http://secunia.com/advisories/22711
- http://secunia.com/advisories/22733
- http://secunia.com/advisories/22758
- http://secunia.com/advisories/22799
- http://secunia.com/advisories/22932
- http://secunia.com/advisories/22934
- http://secunia.com/advisories/22936
- http://secunia.com/advisories/22937
- http://secunia.com/advisories/22938
- http://secunia.com/advisories/22939
- http://secunia.com/advisories/22940
- http://secunia.com/advisories/22948