Description (CNA)
Uncontrolled recursion in XPath evaluation in libxml2 up to and including version 2.9.14 allows a local attacker to cause a stack overflow via crafted expressions. XPath processing functions `xmlXPathRunEval`, `xmlXPathCtxtCompile`, and `xmlXPathEvalExpr` were resetting recursion depth to zero before making potentially recursive calls. When such functions were called recursively this could allow for uncontrolled recursion and lead to a stack overflow. These functions now preserve recursion depth across recursive calls, allowing recursion depth to be controlled.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| libxml2 / libxml2 | affected 0 before 2.10.0; affected 0 before 2.12.7+dfsg+really2.9.14-0.4ubuntu0.3; affected 0 before 2.9.14+dfsg-1.3ubuntu3.5; affected 0 before 2.9.13+dfsg-1ubuntu0.9; affected 0 before 2.9.10+dfsg-5ubuntu0.20.04.10+esm2; affected 0 before 2.9.4+dfsg1-6.1ubuntu1.9+esm5; affected 0 before 2.9.3+dfsg1-1ubuntu0.7+esm10; affected 0 before 2.9.1+dfsg1-3ubuntu4.13+esm9 |
CWE
CWE-674
References
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
No English description supplied.