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.

CVSS v3.0

8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

1.50% chance of exploitation in the next 30 days, 73th percentile

Published

2018-12-25

Updated

2024-08-05

Proof-of-concept exploits (1)

• evanmiller/libxls/issues/35

References

• CVE Record
• NVD entry

Related

• CVE-2018-20450
• CVE-2018-20451
• CVE-2018-20453
• CVE-2018-20454
• CVE-2018-20448
• CVE-2018-20462