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CVE-2019-18197

7.5 · HIGH

In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances.

Published Oct 18, 2019CWE-416EPSS 4.36%

Overview

CVE-2019-18197 is a high-severity vulnerability. It was published on October 18, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2020-02/msg00010.htmlReflists.opensuse.org/opensuse-security-announce/2020-02/msg00015.htmlReflists.opensuse.org/opensuse-security-announce/2020-02/msg00025.htmlReflists.opensuse.org/opensuse-security-announce/2020-05/msg00062.htmlRefwww.openwall.com/lists/oss-security/2019/11/17/2Refaccess.redhat.com/errata/RHSA-2020:0514Refbugs.chromium.org/p/oss-fuzz/issues/detail?id=15746Refbugs.chromium.org/p/oss-fuzz/issues/detail?id=15768Refbugs.chromium.org/p/oss-fuzz/issues/detail?id=15914Refgitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285

How CyberStrike helps

Frequently asked questions

What is CVE-2019-18197?

CVE-2019-18197 is a high-severity vulnerability. It was published on October 18, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2019-18197?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-18197?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-18197?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-18197 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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