The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-2808 from the MITRE CVE dictionary dictionary and NIST NVD.
This flaw is related to the design of the RC4 protocol and not its implementation. Therefore there are no plans to correct this issue in Red Hat Enterprise Linux 5, 6 and 7. Future updates may disable the use of RC4 in various components.
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:P/I:N/A:N |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | None |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Oracle Java for Red Hat Enterprise Linux 6 (java-1.8.0-oracle) | RHSA-2015:1241 | 2015-07-17 |
| Oracle Java for Red Hat Enterprise Linux 6 (java-1.6.0-sun) | RHSA-2015:1243 | 2015-07-17 |
| Oracle Java for Red Hat Enterprise Linux 6 (java-1.7.0-oracle) | RHSA-2015:1242 | 2015-07-17 |
| Red Hat Enterprise Linux Supplementary (v. 6) (java-1.6.0-ibm) | RHSA-2015:1006 | 2015-05-13 |
| Red Hat Enterprise Linux Supplementary (v. 6) (java-1.5.0-ibm) | RHSA-2015:1021 | 2015-05-20 |
| Red Hat Enterprise Linux Supplementary (v. 6) (java-1.7.1-ibm) | RHSA-2015:1020 | 2015-05-20 |
| Oracle Java for Red Hat Enterprise Linux 7 (java-1.8.0-oracle) | RHSA-2015:1241 | 2015-07-17 |
| Red Hat Enterprise Linux Supplementary (v. 7) (java-1.7.1-ibm) | RHSA-2015:1020 | 2015-05-20 |
| Oracle Java for Red Hat Enterprise Linux 7 (java-1.7.0-oracle) | RHSA-2015:1242 | 2015-07-17 |
| Red Hat Enterprise Linux Supplementary 5 (java-1.5.0-ibm) | RHSA-2015:1021 | 2015-05-20 |
| Red Hat Enterprise Linux 6 (java-1.6.0-openjdk) | RHSA-2015:1526 | 2015-07-30 |
| Oracle Java for Red Hat Enterprise Linux 7 (java-1.6.0-sun) | RHSA-2015:1243 | 2015-07-17 |
| Red Hat Enterprise Linux Supplementary 5 (java-1.6.0-ibm) | RHSA-2015:1006 | 2015-05-13 |
| Red Hat Enterprise Linux Supplementary 5 (java-1.7.0-ibm) | RHSA-2015:1007 | 2015-05-13 |
| Red Hat Satellite 5.6 (RHEL v.5) (java-1.6.0-ibm) | RHSA-2015:1091 | 2015-06-11 |
| Red Hat Enterprise Linux 5 (java-1.6.0-openjdk) | RHSA-2015:1526 | 2015-07-30 |
| Red Hat Enterprise Linux 6 (java-1.7.0-openjdk) | RHSA-2015:1229 | 2015-07-15 |
| Red Hat Enterprise Linux 6 (java-1.8.0-openjdk) | RHSA-2015:1228 | 2015-07-15 |
| Red Hat Enterprise Linux 5 (java-1.7.0-openjdk) | RHSA-2015:1230 | 2015-07-15 |
| Red Hat Satellite 5.6 (RHEL v.6) (java-1.6.0-ibm) | RHSA-2015:1091 | 2015-06-11 |
| Red Hat Satellite 5.7 (RHEL v.6) (java-1.6.0-ibm) | RHSA-2015:1091 | 2015-06-11 |
| Red Hat Enterprise Linux 7 (java-1.6.0-openjdk) | RHSA-2015:1526 | 2015-07-30 |
| Oracle Java for Red Hat Enterprise Linux 5 (java-1.7.0-oracle) | RHSA-2015:1242 | 2015-07-17 |
| Oracle Java for Red Hat Enterprise Linux 5 (java-1.6.0-sun) | RHSA-2015:1243 | 2015-07-17 |
| Red Hat Enterprise Linux 7 (java-1.8.0-openjdk) | RHSA-2015:1228 | 2015-07-15 |
| Red Hat Enterprise Linux 7 (java-1.7.0-openjdk) | RHSA-2015:1229 | 2015-07-15 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | nss | Will not fix |
| Red Hat Enterprise Linux 7 | openssl | Will not fix |
| Red Hat Enterprise Linux 7 | gnutls | Will not fix |
| Red Hat Enterprise Linux 6 | openssl | Will not fix |
| Red Hat Enterprise Linux 6 | gnutls | Will not fix |
| Red Hat Enterprise Linux 6 | nss | Will not fix |
| Red Hat Enterprise Linux 5 | openssl | Will not fix |
| Red Hat Enterprise Linux 5 | nss | Will not fix |
| Red Hat Enterprise Linux 5 | gnutls | Will not fix |
Vulmon