What’s Vulnerable › Vulnerabilities

CVE-2019-20503

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-03-06 · updated 2026-06-17
• Weakness: CWE-125

Description

usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 19.10
• Debian Linux: 8.0, 9.0, 10.0
• Usrsctp Project Usrsctp: before 0.9.4.0 — fixed in 0.9.4.0

How to fix

Upgrade to a fixed version: Usrsctp Project Usrsctp 0.9.4.0. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00022.html
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.html
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00030.html
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html
• http://seclists.org/fulldisclosure/2020/May/49
• http://seclists.org/fulldisclosure/2020/May/52
• http://seclists.org/fulldisclosure/2020/May/55
• http://seclists.org/fulldisclosure/2020/May/59
• https://access.redhat.com/errata/RHSA-2020:0815
• https://access.redhat.com/errata/RHSA-2020:0816
• https://access.redhat.com/errata/RHSA-2020:0819
• https://access.redhat.com/errata/RHSA-2020:0820

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