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

AI summary snake-internal / snake-template-v1

A weakness called UBUNTU-CVE-2019-20503 was discovered in the affected product. Severity is Info. Low severity or not yet rated. What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "the product UBUNTU-CVE-2019-20503".

UBUNTU-CVE-2019-20503 (the affected product). Severity: Info. Response plan: 1. Check the vendor advisory for affected versions and the patched release. 2. If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS). 3. If no patch yet, mitigate via WAF rule, disabling the affected feature, etc. 4. Monitor logs / SIEM for known IOC and PoC signatures of this CVE. PoCs and fix commits: see the 'References' section, MITRE, and NVD.

❓ What is the problem

A weakness (UBUNTU-CVE-2019-20503) in the affected product. A serious software flaw has been identified.

📍 Affected scope

Target versions of the affected product (see vendor advisory). If running in production, identify exposure immediately.

🔥 Severity

Severity: Info. Low severity or not yet rated.

🔧 How to fix

Update to the patched release as listed in the vendor advisory.

🛡️ Workaround

If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.

🔍 Detection

Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.

Affected packages

Ubuntu:16.04:LTS chromium-browser

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"80.0.3987.149-0ubuntu0.16.04.1"}]}]

Ubuntu:16.04:LTS firefox

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"74.0+build3-0ubuntu0.16.04.1"}]}]

Ubuntu:16.04:LTS thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:68.7.0+build1-0ubuntu0.16.04.2"}]}]

Ubuntu:18.04:LTS chromium-browser

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"80.0.3987.149-0ubuntu0.18.04.1"}]}]

Ubuntu:18.04:LTS firefox

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"74.0+build3-0ubuntu0.18.04.1"}]}]

Ubuntu:18.04:LTS thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:68.7.0+build1-0ubuntu0.18.04.1"}]}]

Ubuntu:20.04:LTS firefox

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"74.0+build3-0ubuntu1"}]}]

Ubuntu:20.04:LTS thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:68.6.0+build2-0ubuntu1"}]}]

Ubuntu:20.04:LTS libusrsctp