nss: Cache side-channel variant of the Bleichenbacher attack
Published May 2, 2019
5.9
MEDIUMCVSS 3.0
EPSS 44.25%
Description
A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.
Affected products
-
- Version All versions prior to NSS 3.41StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Network Security Services (NSS) | n/a |
|
- < 3.41
No data.
Red Hat Ansible Tower 3.4 for RHEL 7
ansible-tower-34/ansible-tower-memcached:1.4.15-28
Fixed · RHBA-2020:0547
Red Hat Ansible Tower 3.4 for RHEL 7
ansible-tower-35/ansible-tower-memcached:1.4.15-28
Fixed · RHBA-2020:0547
Red Hat Ansible Tower 3.4 for RHEL 7
ansible-tower-37/ansible-tower-memcached-rhel7:1.4.15-28
Fixed · RHBA-2020:0547
Red Hat Enterprise Linux 7
nspr-0:4.21.0-1.el7
Fixed · RHSA-2019:2237
Red Hat Enterprise Linux 7
nss-0:3.44.0-4.el7
Fixed · RHSA-2019:2237
Red Hat Enterprise Linux 7
nss-softokn-0:3.44.0-5.el7
Fixed · RHSA-2019:2237
Red Hat Enterprise Linux 7
nss-util-0:3.44.0-3.el7
Fixed · RHSA-2019:2237
Red Hat Enterprise Linux 5
nss
Will not fix
Red Hat Enterprise Linux 6
nss
Will not fix
Red Hat Enterprise Linux 8
mingw-nss
Will not fix
Red Hat Enterprise Linux 8
nss
Not affected
Red Hat OpenShift Enterprise 3
nss
Not affected
Red Hat Virtualization 4
redhat-virtualization-host
Will not fix
Red Hat Virtualization 4
rhvm-appliance
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Ansible Tower 3.4 for RHEL 7 | ansible-tower-34/ansible-tower-memcached:1.4.15-28 | Fixed | RHBA-2020:0547 |
| Red Hat Ansible Tower 3.4 for RHEL 7 | ansible-tower-35/ansible-tower-memcached:1.4.15-28 | Fixed | RHBA-2020:0547 |
| Red Hat Ansible Tower 3.4 for RHEL 7 | ansible-tower-37/ansible-tower-memcached-rhel7:1.4.15-28 | Fixed | RHBA-2020:0547 |
| Red Hat Enterprise Linux 7 | nspr-0:4.21.0-1.el7 | Fixed | RHSA-2019:2237 |
| Red Hat Enterprise Linux 7 | nss-0:3.44.0-4.el7 | Fixed | RHSA-2019:2237 |
| Red Hat Enterprise Linux 7 | nss-softokn-0:3.44.0-5.el7 | Fixed | RHSA-2019:2237 |
| Red Hat Enterprise Linux 7 | nss-util-0:3.44.0-3.el7 | Fixed | RHSA-2019:2237 |
| Red Hat Enterprise Linux 5 | nss | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | nss | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | mingw-nss | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | nss | Not affected | n/a |
| Red Hat OpenShift Enterprise 3 | nss | Not affected | n/a |
| Red Hat Virtualization 4 | redhat-virtualization-host | Will not fix | n/a |
| Red Hat Virtualization 4 | rhvm-appliance | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (41 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 44.25% (0.44248) | 98.72th | v5 (v2026.06.15) |
| Sep 22, 2026 | 44.25% (0.44248) | 98.70th | v5 (v2026.06.15) |
| Sep 21, 2026 | 39.59% (0.39588) | 98.59th | v5 (v2026.06.15) |
| Sep 20, 2026 | 44.25% (0.44248) | 98.70th | v5 (v2026.06.15) |
| Sep 6, 2026 | 44.40% (0.44398) | 98.68th | v5 (v2026.06.15) |
| Sep 5, 2026 | 39.73% (0.39731) | 98.57th | v5 (v2026.06.15) |
| Aug 30, 2026 | 44.40% (0.44398) | 98.67th | v5 (v2026.06.15) |
| Aug 28, 2026 | 39.73% (0.39731) | 98.56th | v5 (v2026.06.15) |
| Aug 24, 2026 | 44.40% (0.44398) | 98.66th | v5 (v2026.06.15) |
| Aug 23, 2026 | 39.73% (0.39731) | 98.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 44.40% (0.44398) | 98.59th | v5 (v2026.06.15) |
| May 26, 2026 | 12.78% (0.12783) | 94.10th | v4 (v2025.03.14) |
| Mar 2, 2026 | 14.50% (0.14501) | 94.34th | v4 (v2025.03.14) |
| Jan 5, 2026 | 33.93% (0.33931) | 96.81th | v4 (v2025.03.14) |
| Dec 11, 2025 | 15.43% (0.15435) | 94.40th | v4 (v2025.03.14) |
| Nov 21, 2025 | 19.73% (0.19731) | 95.20th | v4 (v2025.03.14) |
| Nov 18, 2025 | 0.42% (0.00423) | 59.39th | v4 (v2025.03.14) |
| Oct 3, 2025 | 19.73% (0.19731) | 95.27th | v4 (v2025.03.14) |
| Aug 24, 2025 | 14.73% (0.14734) | 94.23th | v4 (v2025.03.14) |
| Aug 17, 2025 | 40.31% (0.40309) | 97.23th | v4 (v2025.03.14) |
| Aug 12, 2025 | 43.36% (0.43364) | 97.40th | v4 (v2025.03.14) |
| Jul 13, 2025 | 40.31% (0.40309) | 97.19th | v4 (v2025.03.14) |
| Jun 20, 2025 | 33.93% (0.33931) | 96.74th | v4 (v2025.03.14) |
| Apr 22, 2025 | 41.69% (0.41687) | 97.19th | v4 (v2025.03.14) |
| Mar 30, 2025 | 48.25% (0.48250) | 97.49th | v4 (v2025.03.14) |
| Mar 29, 2025 | 53.61% (0.53607) | 97.07th | v4 (v2025.03.14) |
| Mar 18, 2025 | 48.25% (0.48250) | 97.48th | v4 (v2025.03.14) |
| Mar 17, 2025 | 35.99% (0.35987) | 96.73th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.33% (0.02330) | 89.44th | v3 (v2023.03.01) |
| Nov 1, 2024 | 6.66% (0.06660) | 94.01th | v3 (v2023.03.01) |
| Sep 22, 2024 | 8.83% (0.08831) | 94.67th | v3 (v2023.03.01) |
| Apr 25, 2024 | 10.23% (0.10235) | 94.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 15.11% (0.15110) | 94.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.86% (0.01865) | 48.06th | v1 |
| Jan 6, 2022 | 1.86% (0.01865) | 47.54th | v1 |
| Sep 1, 2021 | 1.86% (0.01865) | 76.13th | v1 |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
References (12)
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/107260 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2237 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-12404 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12404 x_refsource_MISCIssue TrackingVDB EntryVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1657913 Issue Tracking
- https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf x_refsource_CONFIRM
- https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-12404
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2018-12404
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html | vendor-advisoryx_refsource_SUSE | |
| http://www.securityfocus.com/bid/107260 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2019:2237 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-12404 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12404 | x_refsource_MISCIssue TrackingVDB EntryVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1657913 | Issue Tracking | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-12404 | ||
| https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 | x_refsource_MISC | |
| https://www.cve.org/CVERecord?id=CVE-2018-12404 | ||
| https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html | x_refsource_MISC |
Change history (0)
No recorded changes yet.