CVE-2019-13117

moderate-risk
Published 2019-07-01

In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumbers. This could allow an attacker to discern whether a byte on the stack contains the characters A, a, I, i, or 0, or any other character.

Do I need to act?

~
4.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

References (26)

Third Party Advisory https://usn.ubuntu.com/4164-1/
and 6 more references
45
/ 100
moderate-risk
Severity 21/34 · High
Exploitability 8/34 · Low
Exposure 16/34 · Moderate