CVE-2023-38852

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-08-15 · updated 2026-06-17
Weakness: CWE-787

Description

Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the unicode_decode_wcstombs function in xlstool.c:266.

Affected products

libxls: 1.6.2

References

https://github.com/libxls/libxls/issues/124
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQYGEBDBCOWBRHOW44BSSRADUOZBXHUE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHBUPYF2NX34HNAWZ3WYHKWU3KWVQUSV/
https://github.com/libxls/libxls/issues/124
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQYGEBDBCOWBRHOW44BSSRADUOZBXHUE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHBUPYF2NX34HNAWZ3WYHKWU3KWVQUSV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JQYGEBDBCOWBRHOW44BSSRADUOZBXHUE/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YHBUPYF2NX34HNAWZ3WYHKWU3KWVQUSV/

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