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CVE-2017-9048

7.5 high SSVC exploitation: none Modified

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · xmlsoftNVD modified 2026-10-14 07:16

Affected (CPE criteria) 1

  • cpe:2.3:a:xmlsoft:libxml2:2.9.4:*:*:*:*:*:*:*

References 13