Vulnerability Monitor

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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.

Published

2019-12-03T22:15:15.370

Last Modified

2024-11-21T04:44:28.237

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-306
Type: Primary
CWE-306

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	shadowsocks	shadowsocks-libev	3.3.2	Yes
Operating System	opensuse	backports	sle-15	Yes
Operating System	opensuse	leap	15.1	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html Mailing List, Third Party Advisory ([email protected])
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956 Exploit, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)