CVE-2019-5152
An exploitable information disclosure vulnerability exists in the network packet handling...
CVE-2019-5152 is a high vulnerability (CVSS 7.4) in Shadowsocks Shadowsocks-libev, published December 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.39%, the 72nd percentile. No source names a fixed version.
- Severity
- 7.4 HighCVSS 3.0, CVE List
- Exploit chance
- 1.39%EPSS, 72nd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
shadowsocks-libevDebian:12 | All versions, plus listed versions 3.3.5+ds-103.3.5+ds-113.3.5+ds-123.3.5+ds-133.3.5+ds-14 Show 5 moreShow less3.3.5+ds-153.3.5+ds-163.3.6+ds-13.3.6+ds-23.3.6+ds-3 | None known |
shadowsocks-libevDebian:13 | All versions, plus listed versions 3.3.5+ds-163.3.6+ds-13.3.6+ds-23.3.6+ds-3 | None known |
shadowsocks-libevUbuntu:18.04:LTS | All versions, plus listed versions 3.0.8+ds-23.1.0+ds-33.1.0+ds-43.1.0+ds-53.1.1+ds-1 Show 4 moreShow less3.1.1+ds-23.1.1+ds-33.1.3+ds-1ubuntu13.1.3+ds-1ubuntu2 | None known |
shadowsocks-libevUbuntu:20.04:LTS | All versions, plus listed versions 3.3.1+ds-13.3.2+ds-13.3.3+ds-13.3.3+ds-33.3.4+ds-13.3.4+ds-1ubuntu13.3.4+ds-2 | None known |
shadowsocks-libevUbuntu:22.04:LTS | All versions, plus listed versions 3.3.5+ds-43.3.5+ds-63.3.5+ds-73.3.5+ds-7build1 | None known |
shadowsocks-libevUbuntu:24.04:LTS | All versions, plus listed versions 3.3.5+ds-103.3.5+ds-10build13.3.5+ds-10build23.3.5+ds-10build3 | None known |
shadowsocks-libevUbuntu:25.10 | All versions, plus listed versions 3.3.5+ds-16 | None known |
shadowsocks-libevUbuntu:26.10 | All versions, plus listed versions 3.3.5+ds-16build13.3.6+ds-3ubuntu1 | None known |
shadowsocks-libevUbuntu:26.04:LTS | All versions, plus listed versions 3.3.5+ds-163.3.5+ds-16build1 | None known |
What each source reports
CVE List Score used
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
- Record
CVE-2019-5152- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
EUVDEUVD-2019-14757
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
- Record
EUVD-2019-14757- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pmr7-f238-jxqj
An exploitable information disclosure vulnerability exists in the network packet handling...
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
- Record
GHSA-pmr7-f238-jxqj- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
NVD
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
- Record
CVE-2019-5152- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
OSV
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
- Record
CVE-2019-5152- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-5152
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
- Record
DEBIAN-CVE-2019-5152- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-5152
An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.
- Record
UBUNTU-CVE-2019-5152- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
talosintelligence.com/vulnerability_reports/TALOS-2019-0942
nvd.nist.gov/vuln/detail/CVE-2019-5152
github.com/advisories/GHSA-pmr7-f238-jxqj
security-tracker.debian.org/tracker/CVE-2019-5152
ubuntu.com/security/CVE-2019-5152
cve.org/CVERecord?id=CVE-2019-5152