- Issued:
- 2017-10-17
- Updated:
- 2017-10-17
RHSA-2017:2907 - Important: wpa_supplicant security update
Synopsis
Important: wpa_supplicant security update
Type/Severity
Security Advisory Important
Topic
An update for wpa_supplicant is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The wpa_supplicant packages contain an 802.1X Supplicant with support for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication methods. They implement key negotiation with a WPA Authenticator for client stations and controls the roaming and IEEE 802.11 authentication and association of the WLAN driver.
Security Fix(es):
- A new exploitation technique called key reinstallation attacks (KRACK) affecting WPA2 has been discovered. A remote attacker within Wi-Fi range could exploit these attacks to decrypt Wi-Fi traffic or possibly inject forged Wi-Fi packets by manipulating cryptographic handshakes used by the WPA2 protocol. (CVE-2017-13077, CVE-2017-13078, CVE-2017-13080, CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088)
Red Hat would like to thank CERT for reporting these issues. Upstream acknowledges Mathy Vanhoef (University of Leuven) as the original reporter of these issues.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 7.7 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 7.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 7.4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 7.7 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 7.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 7.5 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 7.4 | x86_64 |
| Red Hat Enterprise Linux for Scientific Computing | 7 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 7 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 7.7 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 7.6 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 7.5 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 7.4 | ppc64le |
| Red Hat Enterprise Linux for Power, big endian | 7 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 7.7 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 7.6 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 7.5 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 7.4 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems | 7 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 7.7 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 7.6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 7.5 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 7.4 | s390x |
| Red Hat Enterprise Linux Workstation | 7 | x86_64 |
| Red Hat Enterprise Linux Server | 7 | x86_64 |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 7.7 | ppc64le |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 7.6 | ppc64le |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 7.4 | ppc64le |
| Red Hat Enterprise Linux Server - TUS | 7.7 | x86_64 |
| Red Hat Enterprise Linux Server - TUS | 7.6 | x86_64 |
| Red Hat Enterprise Linux Server - TUS | 7.4 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 7 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian | 7 | ppc64le |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian | 7 | ppc64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 7 | s390x |
| Red Hat Enterprise Linux Server - AUS | 7.7 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 7.6 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 7.4 | x86_64 |
| Red Hat Enterprise Linux EUS Compute Node | 7.7 | x86_64 |
| Red Hat Enterprise Linux EUS Compute Node | 7.6 | x86_64 |
| Red Hat Enterprise Linux EUS Compute Node | 7.5 | x86_64 |
| Red Hat Enterprise Linux EUS Compute Node | 7.4 | x86_64 |
| Red Hat Enterprise Linux Desktop | 7 | x86_64 |
Updated Packages
- wpa_supplicant-2.6-5.el7_4.1.s390x.rpm
- wpa_supplicant-2.6-5.el7_4.1.ppc64le.rpm
- wpa_supplicant-2.6-5.el7_4.1.src.rpm
- wpa_supplicant-debuginfo-2.6-5.el7_4.1.ppc64.rpm
- wpa_supplicant-debuginfo-2.6-5.el7_4.1.ppc64le.rpm
- wpa_supplicant-debuginfo-2.6-5.el7_4.1.x86_64.rpm
- wpa_supplicant-debuginfo-2.6-5.el7_4.1.s390x.rpm
- wpa_supplicant-2.6-5.el7_4.1.aarch64.rpm
- wpa_supplicant-2.6-5.el7_4.1.ppc64.rpm
- wpa_supplicant-2.6-5.el7_4.1.x86_64.rpm
- wpa_supplicant-debuginfo-2.6-5.el7_4.1.aarch64.rpm
Fixes
- This content is not included.BZ - 1491692
- This content is not included.BZ - 1491693
- This content is not included.BZ - 1491696
- This content is not included.BZ - 1491698
- This content is not included.BZ - 1500302
- This content is not included.BZ - 1500303
- This content is not included.BZ - 1500304
CVEs
- CVE-2017-13077
- CVE-2017-13078
- CVE-2017-13080
- CVE-2017-13082
- CVE-2017-13086
- CVE-2017-13087
- CVE-2017-13088
References
- https://access.redhat.com/security/updates/classification/#important
- This content is not included.This content is not included.https://access.redhat.com/security/vulnerabilities/kracks
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.