CVE-2023-26364 Denial of Service of regular expression in package @adobe/css-tools

Medium 5.3 Published Updated

Attackers can cause a denial of service by sending specially crafted CSS input to applications using the @adobe/css-tools library.

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

What is CVE-2023-26364?

CVE-2023-26364 is a medium-severity denial of service vulnerability in Adobe Not a product, published on 17 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

@adobe/css-tools version 4.3.0 and earlier are affected by an Improper Input Validation vulnerability that could result in a minor denial of service while attempting to parse CSS. Exploitation of this issue does not require user interaction or privileges.

Weakness: CWE-20

Which versions are affected by CVE-2023-26364?

2 open source packages ship an affected version, including @adobe/css-tools. It affects 1 product.

PackageAffectedFixed in
@adobe/css-tools npmAll versions4.3.1
@adobe/css-tools npmAll versions4.3.1
Linux distribution packages (3)
cockpit-wicked SUSE:Linux Enterprise Micro 5.4All versions4.5-150400.3.3.1
cockpit-wicked SUSE:Linux Enterprise Micro 5.5All versions5~git8.c06c55b-150500.3.3.1
cockpit-wicked SUSE:Linux Enterprise Micro 5.5All versions5~git8.c06c55b-150500.3.3.1

Products include Adobe Css-Tools.

How do I fix CVE-2023-26364?

Upgrade @adobe/css-tools to 4.3.1 or later.

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-2023-26364 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26364 exists.

Sources

Also known as GHSA-hpx4-r86g-5jrg, SUSE-SU-2024:1415-1, SUSE-SU-2024:1415-2, SUSE-SU-2024:1416-1.

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