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CVE-2018-20452

UnknownEPSS 1.50%

Last modified

CVE-2018-20452 is a vulnerability of currently unknown severity. The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.. EPSS estimates a 1.50% chance of exploitation in the next 30 days.

Description

The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.

Metrics

EPSS Probability
1.50%

71.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Libxls ProjectLibxls1.4.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-20452?
The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.
How severe is CVE-2018-20452?
Severity scoring for CVE-2018-20452 is pending analysis. The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20452?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20452?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST