CVE-2019-20503

Public Exploit

Description

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

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.98% Top 25%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory chromium.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.chromium.org/p/project-zero/issues/detail?id=1992 exploit patch vendor advisory
https://github.com/sctplab/usrsctp/commit/790a7a2555aefb392a5a69923f1e9d17b4968467 third party advisory patch
https://lists.debian.org/debian-lts-announce/2020/03/msg00013.html third party advisory mailing list
https://www.debian.org/security/2020/dsa-4639 third party advisory vendor advisory
https://security.gentoo.org/glsa/202003-02 third party advisory vendor advisory
https://security.gentoo.org/glsa/202003-10 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00022.html mailing list third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0815 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0819 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0816 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2020:0820 third party advisory vendor advisory
https://usn.ubuntu.com/4299-1/ third party advisory vendor advisory
https://crbug.com/1059349 third party advisory
https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_18.html third party advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00023.html third party advisory mailing list
https://www.debian.org/security/2020/dsa-4642 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00030.html mailing list third party advisory vendor advisory
https://www.debian.org/security/2020/dsa-4645 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWANFIR3PYAL5RJQ4AO3ZS2DYMSF2ZGZ/ mailing list third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DDNOAGIX5D77TTHT6YPMVJ5WTXTCQEI/ mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html mailing list third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/ mailing list third party advisory vendor advisory
https://usn.ubuntu.com/4328-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4335-1/ third party advisory vendor advisory
https://support.apple.com/kb/HT211175 third party advisory
https://support.apple.com/kb/HT211171 third party advisory
https://support.apple.com/kb/HT211168 third party advisory
https://support.apple.com/kb/HT211177 third party advisory
http://seclists.org/fulldisclosure/2020/May/49 third party advisory mailing list
http://seclists.org/fulldisclosure/2020/May/52 third party advisory mailing list
http://seclists.org/fulldisclosure/2020/May/55 third party advisory mailing list
http://seclists.org/fulldisclosure/2020/May/59 third party advisory mailing list
https://support.apple.com/HT211168 third party advisory
https://support.apple.com/HT211171 third party advisory
https://support.apple.com/HT211175 third party advisory
https://support.apple.com/HT211177 third party advisory
https://lists.debian.org/debian-lts-announce/2023/07/msg00003.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2019-20503?
CVE-2019-20503 has been scored as a medium severity vulnerability.
How to fix CVE-2019-20503?
To fix CVE-2019-20503, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-20503 being actively exploited in the wild?
It is possible that CVE-2019-20503 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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