TLS 1.2 Transcipt Collision attacks against MD5 in key exchange protocol (SLOTH)
Published Jan 9, 2016
5.9
MEDIUMCVSS 3.0
EPSS 2.90%
Description
Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which makes it easier for man-in-the-middle attackers to spoof servers by triggering a collision.
Affected products
No data.
Configuration 1
- ≤ 3.20.1
Configuration 3
- 38.0
- 38.0.1
- 38.0.5
- 38.1.0
- 38.1.1
- 38.2.0
- 38.2.1
- 38.3.0
- 38.4.0
- 38.5.0
- 38.5.1
Configuration 4
- 14.04
- 15.04
- 15.10
No data.
Oracle Java for Red Hat Enterprise Linux 5
java-1.7.0-oracle-1:1.7.0.95-1jpp.1.el5_11
Fixed · RHSA-2016:0056
Oracle Java for Red Hat Enterprise Linux 6
java-1.7.0-oracle-1:1.7.0.95-1jpp.1.el6_7
Fixed · RHSA-2016:0056
Oracle Java for Red Hat Enterprise Linux 6
java-1.8.0-oracle-1:1.8.0.71-1jpp.1.el6_7
Fixed · RHSA-2016:0055
Oracle Java for Red Hat Enterprise Linux 7
java-1.7.0-oracle-1:1.7.0.95-1jpp.2.el7
Fixed · RHSA-2016:0056
Oracle Java for Red Hat Enterprise Linux 7
java-1.8.0-oracle-1:1.8.0.71-1jpp.1.el7
Fixed · RHSA-2016:0055
Red Hat Enterprise Linux 5
java-1.7.0-openjdk-1:1.7.0.95-2.6.4.1.el5_11
Fixed · RHSA-2016:0054
Red Hat Enterprise Linux 5 Supplementary
java-1.6.0-ibm-1:1.6.0.16.20-1jpp.1.el5
Fixed · RHSA-2016:0101
Red Hat Enterprise Linux 5 Supplementary
java-1.7.0-ibm-1:1.7.0.9.30-1jpp.1.el5
Fixed · RHSA-2016:0100
Red Hat Enterprise Linux 6
gnutls-0:2.8.5-19.el6_7
Fixed · RHSA-2016:0012
Red Hat Enterprise Linux 6
java-1.7.0-openjdk-1:1.7.0.95-2.6.4.0.el6_7
Fixed · RHSA-2016:0053
Red Hat Enterprise Linux 6
java-1.8.0-openjdk-1:1.8.0.71-1.b15.el6_7
Fixed · RHSA-2016:0050
Red Hat Enterprise Linux 6
nss-0:3.19.1-8.el6_7
Fixed · RHSA-2016:0007
Red Hat Enterprise Linux 6
openssl-0:1.0.1e-42.el6_7.2
Fixed · RHSA-2016:0008
Red Hat Enterprise Linux 6 Supplementary
java-1.6.0-ibm-1:1.6.0.16.20-1jpp.1.el6_7
Fixed · RHSA-2016:0101
Red Hat Enterprise Linux 6 Supplementary
java-1.7.1-ibm-1:1.7.1.3.30-1jpp.2.el6_7
Fixed · RHSA-2016:0099
Red Hat Enterprise Linux 7
gnutls-0:3.3.8-14.el7_2
Fixed · RHSA-2016:0012
Red Hat Enterprise Linux 7
java-1.7.0-openjdk-1:1.7.0.95-2.6.4.0.el7_2
Fixed · RHSA-2016:0054
Red Hat Enterprise Linux 7
java-1.8.0-openjdk-1:1.8.0.71-2.b15.el7_2
Fixed · RHSA-2016:0049
Red Hat Enterprise Linux 7
nss-0:3.19.1-19.el7_2
Fixed · RHSA-2016:0007
Red Hat Enterprise Linux 7
openssl-1:1.0.1e-51.el7_2.2
Fixed · RHSA-2016:0008
Red Hat Enterprise Linux 7 Supplementary
java-1.7.1-ibm-1:1.7.1.3.30-1jpp.1.el7
Fixed · RHSA-2016:0099
Red Hat Enterprise Linux 7 Supplementary
java-1.8.0-ibm-1:1.8.0.2.10-1jpp.1.el7
Fixed · RHSA-2016:0098
Red Hat Satellite 5.6
java-1.7.0-ibm-1:1.7.0.9.40-1jpp.1.el5
Fixed · RHSA-2016:1430
Red Hat Satellite 5.6
java-1.7.1-ibm-1:1.7.1.3.40-1jpp.1.el6_7
Fixed · RHSA-2016:1430
Red Hat Satellite 5.6
spacewalk-java-0:2.0.2-109.el5sat
Fixed · RHSA-2016:1430
Red Hat Satellite 5.7
java-1.7.1-ibm-1:1.7.1.3.40-1jpp.1.el6_7
Fixed · RHSA-2016:1430
Red Hat Satellite 5.7
spacewalk-java-0:2.3.8-146.el6sat
Fixed · RHSA-2016:1430
Red Hat Enterprise Linux 5
gnutls
Not affected
Red Hat Enterprise Linux 5
java-1.6.0-sun
Not affected
Red Hat Enterprise Linux 5
openssl
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
java-1.6.0-sun
Not affected
Red Hat Enterprise Linux 6
openssl098e
Not affected
Red Hat Enterprise Linux 7
java-1.6.0-sun
Not affected
Red Hat Enterprise Linux 7
openssl098e
Not affected
Red Hat JBoss Enterprise Application Platform 6
openssl
Not affected
Red Hat JBoss Enterprise Web Server 1
openssl
Will not fix
Red Hat JBoss Enterprise Web Server 2
openssl
Not affected
Red Hat JBoss Enterprise Web Server 3
openssl
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Oracle Java for Red Hat Enterprise Linux 5 | java-1.7.0-oracle-1:1.7.0.95-1jpp.1.el5_11 | Fixed | RHSA-2016:0056 |
| Oracle Java for Red Hat Enterprise Linux 6 | java-1.7.0-oracle-1:1.7.0.95-1jpp.1.el6_7 | Fixed | RHSA-2016:0056 |
| Oracle Java for Red Hat Enterprise Linux 6 | java-1.8.0-oracle-1:1.8.0.71-1jpp.1.el6_7 | Fixed | RHSA-2016:0055 |
| Oracle Java for Red Hat Enterprise Linux 7 | java-1.7.0-oracle-1:1.7.0.95-1jpp.2.el7 | Fixed | RHSA-2016:0056 |
| Oracle Java for Red Hat Enterprise Linux 7 | java-1.8.0-oracle-1:1.8.0.71-1jpp.1.el7 | Fixed | RHSA-2016:0055 |
| Red Hat Enterprise Linux 5 | java-1.7.0-openjdk-1:1.7.0.95-2.6.4.1.el5_11 | Fixed | RHSA-2016:0054 |
| Red Hat Enterprise Linux 5 Supplementary | java-1.6.0-ibm-1:1.6.0.16.20-1jpp.1.el5 | Fixed | RHSA-2016:0101 |
| Red Hat Enterprise Linux 5 Supplementary | java-1.7.0-ibm-1:1.7.0.9.30-1jpp.1.el5 | Fixed | RHSA-2016:0100 |
| Red Hat Enterprise Linux 6 | gnutls-0:2.8.5-19.el6_7 | Fixed | RHSA-2016:0012 |
| Red Hat Enterprise Linux 6 | java-1.7.0-openjdk-1:1.7.0.95-2.6.4.0.el6_7 | Fixed | RHSA-2016:0053 |
| Red Hat Enterprise Linux 6 | java-1.8.0-openjdk-1:1.8.0.71-1.b15.el6_7 | Fixed | RHSA-2016:0050 |
| Red Hat Enterprise Linux 6 | nss-0:3.19.1-8.el6_7 | Fixed | RHSA-2016:0007 |
| Red Hat Enterprise Linux 6 | openssl-0:1.0.1e-42.el6_7.2 | Fixed | RHSA-2016:0008 |
| Red Hat Enterprise Linux 6 Supplementary | java-1.6.0-ibm-1:1.6.0.16.20-1jpp.1.el6_7 | Fixed | RHSA-2016:0101 |
| Red Hat Enterprise Linux 6 Supplementary | java-1.7.1-ibm-1:1.7.1.3.30-1jpp.2.el6_7 | Fixed | RHSA-2016:0099 |
| Red Hat Enterprise Linux 7 | gnutls-0:3.3.8-14.el7_2 | Fixed | RHSA-2016:0012 |
| Red Hat Enterprise Linux 7 | java-1.7.0-openjdk-1:1.7.0.95-2.6.4.0.el7_2 | Fixed | RHSA-2016:0054 |
| Red Hat Enterprise Linux 7 | java-1.8.0-openjdk-1:1.8.0.71-2.b15.el7_2 | Fixed | RHSA-2016:0049 |
| Red Hat Enterprise Linux 7 | nss-0:3.19.1-19.el7_2 | Fixed | RHSA-2016:0007 |
| Red Hat Enterprise Linux 7 | openssl-1:1.0.1e-51.el7_2.2 | Fixed | RHSA-2016:0008 |
| Red Hat Enterprise Linux 7 Supplementary | java-1.7.1-ibm-1:1.7.1.3.30-1jpp.1.el7 | Fixed | RHSA-2016:0099 |
| Red Hat Enterprise Linux 7 Supplementary | java-1.8.0-ibm-1:1.8.0.2.10-1jpp.1.el7 | Fixed | RHSA-2016:0098 |
| Red Hat Satellite 5.6 | java-1.7.0-ibm-1:1.7.0.9.40-1jpp.1.el5 | Fixed | RHSA-2016:1430 |
| Red Hat Satellite 5.6 | java-1.7.1-ibm-1:1.7.1.3.40-1jpp.1.el6_7 | Fixed | RHSA-2016:1430 |
| Red Hat Satellite 5.6 | spacewalk-java-0:2.0.2-109.el5sat | Fixed | RHSA-2016:1430 |
| Red Hat Satellite 5.7 | java-1.7.1-ibm-1:1.7.1.3.40-1jpp.1.el6_7 | Fixed | RHSA-2016:1430 |
| Red Hat Satellite 5.7 | spacewalk-java-0:2.3.8-146.el6sat | Fixed | RHSA-2016:1430 |
| Red Hat Enterprise Linux 5 | gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 5 | java-1.6.0-sun | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Not affected | n/a |
| Red Hat Enterprise Linux 6 | java-1.6.0-sun | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Not affected | n/a |
| Red Hat Enterprise Linux 7 | java-1.6.0-sun | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openssl098e | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 1 | openssl | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 3 | openssl | Affected | 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:N/I:P/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 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.90% (0.02904) | 86.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.90% (0.02904) | 85.11th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.00% (0.02005) | 82.08th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.51% (0.05506) | 83.33th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.00% (0.02005) | 82.48th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.29% (0.00292) | 69.95th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00292) | 68.23th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.29% (0.00292) | 64.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Feb 13, 2023 | 2.69% (0.02686) | 82.39th | v2 (v2022.01.01) |
| Feb 3, 2023 | 5.73% (0.05732) | 90.03th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (59)
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00038.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00041.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00042.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00043.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00044.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00045.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00047.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00048.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00139.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00005.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00058.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00059.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00101.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00166.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2016-0049.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-0050.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-0053.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-0054.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-0055.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-0056.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2016/dsa-3436 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2016/dsa-3437 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2016/dsa-3457 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2016/dsa-3458 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2016/dsa-3465 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2016/dsa-3491 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2016/dsa-3688 vendor-advisoryx_refsource_DEBIAN
- http://www.mitls.org/pages/attacks/SLOTH
- http://www.mozilla.org/security/announce/2015/mfsa2015-150.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html x_refsource_CONFIRMThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html x_refsource_CONFIRMThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/79684 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/91787 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1034541 vdb-entryx_refsource_SECTRACK
- http://www.securitytracker.com/id/1036467 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2863-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2864-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2865-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2866-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2884-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2904-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/articles/2112261
- https://access.redhat.com/errata/RHSA-2016:1430 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2015-7575 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1158489 x_refsource_CONFIRMIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1289841 Issue Tracking
- https://developer.mozilla.org/docs/Mozilla/Projects/NSS/NSS_3.20.2_release_notes x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-7575
- https://security.gentoo.org/glsa/201701-46 vendor-advisoryx_refsource_GENTOO
- https://security.gentoo.org/glsa/201706-18 vendor-advisoryx_refsource_GENTOO
- https://security.gentoo.org/glsa/201801-15 vendor-advisoryx_refsource_GENTOO
- https://security.netapp.com/advisory/ntap-20160225-0001/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-7575
- https://www.mozilla.org/en-US/security/advisories/mfsa2015-150/
Change history (0)
No recorded changes yet.