VulnerabilityModified
CVE-2019-5163
An exploitable denial-of-service vulnerability exists in the UDPRelay functionality of Shadowsocks-libev 3.3.2.
HIGH 7.5EPSS 2.29%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.29% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- shadowsocks/shadowsocks-libev · opensuse/backports · opensuse/leap
- Source
- talos-cna@cisco.com
References
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.htmlMailing List, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956Exploit, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.htmlMailing List, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.