vulnerability
Red Hat: CVE-2020-1763: CVE-2020-1763 libreswan: DoS attack via malicious IKEv1 informational exchange message (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | May 12, 2020 | May 13, 2020 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
May 12, 2020
Added
May 13, 2020
Modified
Mar 27, 2026
Description
An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.
Solutions
redhat-upgrade-libreswanredhat-upgrade-libreswan-debuginforedhat-upgrade-libreswan-debugsource
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