Skip to content
Noroxi
CVE-2018-12404· NVD / CVE Program· CNA mozilla

A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content.

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.

MediumCVSS 5.9 · v3.0—No exploit Fix available
Published
May 2, 2019
Updated
Jun 16, 2026
EPSS
44.2% · 99th percentile
CWE
—
Follow this CVE

Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.

Report tools

JSON

Action score

36

Monitor

Low priority for now.

CVSS
23 / 40 · 5.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
13 / 30 · 44.2%

Affected systems

VendorProduct
mozillanetwork security services

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mozilla network security servicesbefore 3.41

Versions reported by the vendor

Affected version ranges reported by the assigning authority (mozilla). Independent of NVD's CPE analysis and usually ahead of it.

  • Mozilla Network Security Services (NSS)

    • All versions prior to NSS 3.41affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.10nssbefore 3.41-r03.41-r0
Debian:12nssbefore 2:3.41-12:3.41-1
Debian:8nssbefore 2:3.26-1+debu8u42:3.26-1+debu8u4
Debian:9nssbefore 2:3.26.2-1.1+deb9u22:3.26.2-1.1+deb9u2
openSUSE:Leap 15.0mozilla-nssbefore 3.41.1-lp150.2.16.13.41.1-lp150.2.16.1
openSUSE:Leap 15.0mozilla-nssbefore 3.41.1-lp150.2.20.13.41.1-lp150.2.20.1
openSUSE:Leap 15.0MozillaFirefoxbefore 60.8.0-lp150.3.62.160.8.0-lp150.3.62.1
openSUSE:Tumbleweedmozilla-nssbefore 3.69.1-1.23.69.1-1.2
Red Hat:enterprise_linux:7::clientnsprbefore 0:4.21.0-1.el70:4.21.0-1.el7
Red Hat:enterprise_linux:7::clientnspr-debuginfobefore 0:4.21.0-1.el70:4.21.0-1.el7
Red Hat:enterprise_linux:7::clientnspr-develbefore 0:4.21.0-1.el70:4.21.0-1.el7
Red Hat:enterprise_linux:7::clientnssbefore 0:3.44.0-4.el70:3.44.0-4.el7
Red Hat:enterprise_linux:7::clientnss-debuginfobefore 0:3.44.0-4.el70:3.44.0-4.el7
Red Hat:enterprise_linux:7::clientnss-develbefore 0:3.44.0-4.el70:3.44.0-4.el7
Red Hat:enterprise_linux:7::clientnss-pkcs11-develbefore 0:3.44.0-4.el70:3.44.0-4.el7
Red Hat:enterprise_linux:7::clientnss-softoknbefore 0:3.44.0-5.el70:3.44.0-5.el7
Red Hat:enterprise_linux:7::clientnss-softokn-debuginfobefore 0:3.44.0-5.el70:3.44.0-5.el7
Red Hat:enterprise_linux:7::clientnss-softokn-develbefore 0:3.44.0-5.el70:3.44.0-5.el7
Red Hat:enterprise_linux:7::clientnss-softokn-freeblbefore 0:3.44.0-5.el70:3.44.0-5.el7
Red Hat:enterprise_linux:7::clientnss-softokn-freebl-develbefore 0:3.44.0-5.el70:3.44.0-5.el7
Red Hat:enterprise_linux:7::clientnss-sysinitbefore 0:3.44.0-4.el70:3.44.0-4.el7
Red Hat:enterprise_linux:7::clientnss-toolsbefore 0:3.44.0-4.el70:3.44.0-4.el7
Red Hat:enterprise_linux:7::clientnss-utilbefore 0:3.44.0-3.el70:3.44.0-3.el7
Red Hat:enterprise_linux:7::clientnss-util-debuginfobefore 0:3.44.0-3.el70:3.44.0-3.el7

+9

Other highest-scoring records for the same primary product.

  • CVE-2017-5461Mozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1 a
    40Plan
  • CVE-2009-2404Heap-based buffer overflow in a regular-expression parser in Mozilla Network Security Services (NSS) before 3.12.3, as used in Firefox, Thun
    38Monitor
  • CVE-2016-2834Mozilla Network Security Services (NSS) before 3.23, as used in Mozilla Firefox before 47.0, allows remote attackers to cause a denial of se
    36Monitor
  • CVE-2016-1950Heap-based buffer overflow in Mozilla Network Security Services (NSS) before 3.19.2.3 and 3.20.x and 3.21.x before 3.21.1, as used in Mozill
    36Monitor
  • CVE-2015-7181The sec_asn1d_parse_leaf function in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox be
    32Monitor
  • CVE-2020-25648A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3.
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:nss3.41-r0 · Alpine:v3.10Package registry (OSV)
debian:nss2:3.41-1 · Debian:12Package registry (OSV)
opensuse:mozilla-nss3.41.1-lp150.2.16.1 · openSUSE:Leap 15.0Package registry (OSV)
opensuse:MozillaFirefox60.8.0-lp150.3.62.1 · openSUSE:Leap 15.0Package registry (OSV)
red hat:nspr0:4.21.0-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nspr-debuginfo0:4.21.0-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nspr-devel0:4.21.0-1.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss0:3.44.0-4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-debuginfo0:3.44.0-4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-softokn0:3.44.0-5.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-softokn-debuginfo0:3.44.0-5.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-softokn-freebl0:3.44.0-5.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-sysinit0:3.44.0-4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-tools0:3.44.0-4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-util0:3.44.0-3.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:nss-util-debuginfo0:3.44.0-3.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:mozilla-nspr4.20-3.3.2 · SUSE:Linux Enterprise Module for Basesystem 15Package registry (OSV)
suse:mozilla-nss3.40.1-3.7.2 · SUSE:Linux Enterprise Module for Basesystem 15Package registry (OSV)
suse:MozillaFirefox60.4.0-3.21.1 · SUSE:Linux Enterprise Module for Desktop Applications 15Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records