CVE-2019-20503
MEDIUMCVSS 6.5/10EPSS 3.16%
Last modified
CVE-2019-20503 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.. EPSS estimates a 3.16% chance of exploitation in the next 30 days.
Description
usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Usrsctp Project | Usrsctp | < 0.9.4.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 19.10 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00022.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00030.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.htmlMailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/49Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/52Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/55Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/59Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0815Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0816Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0819Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0820Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1992Exploit, Patch, Vendor Advisory
- https://crbug.com/1059349Third Party Advisory
- https://github.com/sctplab/usrsctp/commit/790a7a2555aefb392a5a69923f1e9d17b4968467Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00013.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00023.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00003.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DDNOAGIX5D77TTHT6YPMVJ5WTXTCQEI/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWANFIR3PYAL5RJQ4AO3ZS2DYMSF2ZGZ/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-02Third Party Advisory
- https://security.gentoo.org/glsa/202003-10Third Party Advisory
- https://support.apple.com/HT211168Third Party Advisory
- https://support.apple.com/HT211171Third Party Advisory
- https://support.apple.com/HT211175Third Party Advisory
- https://support.apple.com/HT211177Third Party Advisory
- https://support.apple.com/kb/HT211168Third Party Advisory
- https://support.apple.com/kb/HT211171Third Party Advisory
- https://support.apple.com/kb/HT211175Third Party Advisory
- https://support.apple.com/kb/HT211177Third Party Advisory
- https://usn.ubuntu.com/4299-1/Third Party Advisory
- https://usn.ubuntu.com/4328-1/Third Party Advisory
- https://usn.ubuntu.com/4335-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4639Third Party Advisory
- https://www.debian.org/security/2020/dsa-4642Third Party Advisory
- https://www.debian.org/security/2020/dsa-4645Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00022.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00030.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.htmlMailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/49Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/52Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/55Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/May/59Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0815Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0816Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0819Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0820Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1992Exploit, Patch, Vendor Advisory
- https://crbug.com/1059349Third Party Advisory
- https://github.com/sctplab/usrsctp/commit/790a7a2555aefb392a5a69923f1e9d17b4968467Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00013.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00023.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00003.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DDNOAGIX5D77TTHT6YPMVJ5WTXTCQEI/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWANFIR3PYAL5RJQ4AO3ZS2DYMSF2ZGZ/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-02Third Party Advisory
- https://security.gentoo.org/glsa/202003-10Third Party Advisory
- https://support.apple.com/HT211168Third Party Advisory
- https://support.apple.com/HT211171Third Party Advisory
- https://support.apple.com/HT211175Third Party Advisory
- https://support.apple.com/HT211177Third Party Advisory
- https://support.apple.com/kb/HT211168Third Party Advisory
- https://support.apple.com/kb/HT211171Third Party Advisory
- https://support.apple.com/kb/HT211175Third Party Advisory
- https://support.apple.com/kb/HT211177Third Party Advisory
- https://usn.ubuntu.com/4299-1/Third Party Advisory
- https://usn.ubuntu.com/4328-1/Third Party Advisory
- https://usn.ubuntu.com/4335-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4639Third Party Advisory
- https://www.debian.org/security/2020/dsa-4642Third Party Advisory
- https://www.debian.org/security/2020/dsa-4645Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-20503?
usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.
How severe is CVE-2019-20503?
CVE-2019-20503 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 3.16% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20503?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-20503?
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