Vulnerability Details : CVE-2019-13377
The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.
Exploit prediction scoring system (EPSS) score for CVE-2019-13377
Probability of exploitation activity in the next 30 days: 0.19%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 56 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-13377
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2019-13377
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-13377
-
https://seclists.org/bugtraq/2019/Sep/56
Bugtraq: [SECURITY] [DSA 4538-1] wpa security updateMailing List;Third Party Advisory
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https://w1.fi/cgit/hostap/commit/?id=cd803299ca485eb857e37c88f973fccfbb8600e5
hostap - hostapd/wpa_supplicantMailing List;Patch;Vendor Advisory
-
https://www.debian.org/security/2019/dsa-4538
Debian -- Security Information -- DSA-4538-1 wpaThird Party Advisory
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https://w1.fi/cgit/hostap/commit/?id=147bf7b88a9c231322b5b574263071ca6dbb0503
hostap - hostapd/wpa_supplicantMailing List;Patch;Vendor Advisory
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https://usn.ubuntu.com/4098-1/
USN-4098-1: wpa_supplicant and hostapd vulnerability | Ubuntu security noticesThird Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IELLEPIXWQOJFW4SZMU3WQHO63JFAHA4/
[SECURITY] Fedora 30 Update: hostapd-2.9-1.fc30 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
Products affected by CVE-2019-13377
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*