Information disclosure in wpa_supplicant (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-13377 |
| CWE-ID | CWE-200 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
wpa_supplicant (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Information disclosure
EUVDB-ID: #VU20415
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-13377
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to conduct time-based side-channel attacks on a targeted system.
The vulnerability exists due to insufficient security restrictions during the WPA3's Dragonfly handshake process when using Brainpool curves. A remote in radio range of the access point can observe timing differences and cache access patterns, conduct a side-channel attack and access sensitive information that could be used for full password recovery.
Install update from vendor's website.
Vulnerable software versionswpa_supplicant (Alpine package): 2.7-r3
External linkshttp://git.alpinelinux.org/aports/commit/?id=031621e2cf39f9441cb620e4ebfb5261276e7978
http://git.alpinelinux.org/aports/commit/?id=b7d037c2a9b8f72b1230453919246b1637028ada
http://git.alpinelinux.org/aports/commit/?id=c5978d4bc83c3c055db7df6a78ba76b748742e2c
http://git.alpinelinux.org/aports/commit/?id=3cd64c67f1c3365cc8ae201d0206327198d4b5a7
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
