CVE-2017-13720
High
Description
In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.
SeverityHigh
CVSS7.1
Exploit probability—
ProductX.org Libxfont
PublishedOct 11, 2017
First seenOct 11, 2017
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| x.org libxfont | v ≤ 1.5.2, 2.0.0, 2.0.1 | — |
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