CVE-2019-9494

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

References

http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/

https://lists.fedoraproject.org/archives/list/[email protected]/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/

https://lists.fedoraproject.org/archives/list/[email protected]/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/

https://seclists.org/bugtraq/2019/May/40

https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc

https://w1.fi/security/2019-1/

https://www.synology.com/security/advisory/Synology_SA_19_16

Details

Source: MITRE

Published: 2019-04-17

Updated: 2019-05-15

Type: CWE-200

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 5.9

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

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM

Tenable Plugins

View all (16 total)

IDNameProductFamilySeverity
143704SUSE SLES12 Security Update : wpa_supplicant (SUSE-SU-2020:3424-1) (KRACK)NessusSuSE Local Security Checks
high
143627SUSE SLED15 / SLES15 Security Update : wpa_supplicant (SUSE-SU-2020:3380-1) (KRACK)NessusSuSE Local Security Checks
high
143321openSUSE Security Update : wpa_supplicant (openSUSE-2020-2053) (KRACK)NessusSuSE Local Security Checks
high
143304openSUSE Security Update : wpa_supplicant (openSUSE-2020-2059) (KRACK)NessusSuSE Local Security Checks
high
137982EulerOS Virtualization 3.0.6.0 : wpa_supplicant (EulerOS-SA-2020-1763)NessusHuawei Local Security Checks
medium
133758openSUSE Security Update : hostapd (openSUSE-2020-222) (KRACK)NessusSuSE Local Security Checks
high
129248EulerOS 2.0 SP3 : wpa_supplicant (EulerOS-SA-2019-2055)NessusHuawei Local Security Checks
medium
128948EulerOS Virtualization for ARM 64 3.0.2.0 : wpa_supplicant (EulerOS-SA-2019-1945)NessusHuawei Local Security Checks
medium
128814EulerOS 2.0 SP5 : wpa_supplicant (EulerOS-SA-2019-1891)NessusHuawei Local Security Checks
medium
128798EulerOS 2.0 SP2 : wpa_supplicant (EulerOS-SA-2019-1875)NessusHuawei Local Security Checks
medium
127016EulerOS 2.0 SP8 : wpa_supplicant (EulerOS-SA-2019-1779)NessusHuawei Local Security Checks
medium
124554Fedora 30 : hostapd (2019-eba1109acd)NessusFedora Local Security Checks
high
124539Fedora 30 : 1:wpa_supplicant (2019-ca49dfd42f)NessusFedora Local Security Checks
high
124252Fedora 29 : hostapd (2019-f409af9fbe)NessusFedora Local Security Checks
high
124250Fedora 28 : hostapd (2019-d03bae77f5)NessusFedora Local Security Checks
high
124222FreeBSD : FreeBSD -- SAE side-channel attacks (7e53f9cc-656d-11e9-8e67-206a8a720317)NessusFreeBSD Local Security Checks
medium