CVE-2019-13619 Denial of service in n/a

High 7.5 Published 17 Jul 2019 Updated 4 Aug 2024

A flaw in Wireshark's ASN.1 BER dissector allows attackers to crash the application via crafted packets, requiring an upgrade to fix.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2019-13619?

CVE-2019-13619 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Wireshark 3.0.0 to 3.0.2, 2.6.0 to 2.6.9, and 2.4.0 to 2.4.15, the ASN.1 BER dissector and related dissectors could crash. This was addressed in epan/asn1.c by properly restricting buffer increments.

Weakness: CWE-119

Which versions are affected by CVE-2019-13619?

It affects 5 products.

Linux distribution packages (10)

`wireshark` SUSE:Linux Enterprise Desktop 12 SP4	All versions	`2.4.16-48.51.1`
`wireshark` SUSE:Linux Enterprise Module for Basesystem 15	All versions	`2.4.16-3.31.1`
`wireshark` SUSE:Linux Enterprise Module for Basesystem 15 SP1	All versions	`2.4.16-3.31.1`
`wireshark` SUSE:Linux Enterprise Module for Desktop Applications 15	All versions	`2.4.16-3.31.1`
`wireshark` SUSE:Linux Enterprise Module for Desktop Applications 15 SP1	All versions	`2.4.16-3.31.1`
`wireshark` SUSE:Linux Enterprise Server 12 SP4	All versions	`2.4.16-48.51.1`
`wireshark` SUSE:Linux Enterprise Server for SAP Applications 12 SP4	All versions	`2.4.16-48.51.1`
`wireshark` SUSE:Linux Enterprise Software Development Kit 12 SP4	All versions	`2.4.16-48.51.1`
`wireshark` openSUSE:Leap 15.0	All versions	`2.4.16-lp151.2.6.1`
`wireshark` openSUSE:Leap 15.1	All versions	`2.4.16-lp151.2.6.1`

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Opensuse Leap, Wireshark Wireshark.

How do I fix CVE-2019-13619?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-13619 being exploited?

There is no known exploitation of CVE-2019-13619 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-13619, GHSA-mh9j-54rp-3h7j, MGASA-2019-0227, SUSE-SU-2019:2103-1, SUSE-SU-2019:2104-1, UBUNTU-CVE-2019-13619 and 1 more.