CVE-2019-10155 Security feature bypass in libreswan

Low 3.1 Published Updated

Attackers can bypass integrity checks on IKEv1 informational packets, potentially allowing unauthorized data injection or manipulation in IPsec communications.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2019-10155?

CVE-2019-10155 is a low-severity vulnerability in Fedoraproject Fedora, published on 12 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Libreswan Project has found a vulnerability in the processing of IKEv1 informational exchange packets which are encrypted and integrity protected using the established IKE SA encryption and integrity keys, but as a receiver, the integrity check value was not verified. This issue affects versions before 3.29.

Weakness: CWE-354

Which versions are affected by CVE-2019-10155?

It affects 5 products.

Products include Fedoraproject Fedora, Libreswan Libreswan, Redhat Enterprise Linux, Strongswan Strongswan, Xelerance Openswan.

How do I fix CVE-2019-10155?

Upgrade to a fixed version.

Is CVE-2019-10155 being exploited?

There is no known exploitation of CVE-2019-10155 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-10155, GHSA-m236-w45w-74ch, MGASA-2019-0210, UBUNTU-CVE-2019-10155.

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