CVE-2019-5163

An exploitable denial-of-service vulnerability exists in the UDPRelay functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher and a local_address, arbitrary UDP packets can cause a FATAL error code path and exit. An attacker can send arbitrary UDP packets to trigger this vulnerability.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.0

5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

2.29% chance of exploitation in the next 30 days, 82th percentile

Published

2019-12-03

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956

References

• CVE Record
• NVD entry

Related

• CVE-2019-5162
• CVE-2019-5164
• CVE-2019-5161
• CVE-2019-5165
• CVE-2019-5160
• CVE-2019-5166