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fkie_cve-2025-49794
Vulnerability from fkie_nvd
Published
2025-06-16 16:15
Modified
2025-08-07 09:15
Severity ?
Summary
A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.
References
Impacted products
| Vendor | Product | Version |
|---|
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CVE-2025-49794 (GCVE-0-2025-49794)
Vulnerability from cvelistv5
Published
2025-06-16 15:24
Modified
2025-08-07 08:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-825 - Expired Pointer Dereference
Summary
A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ► | Red Hat | Red Hat Enterprise Linux 10 |
Unaffected: 0:2.12.5-7.el10_0 < * cpe:/o:redhat:enterprise_linux:10.0 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2372373"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-06-11T21:33:43.044000+00:00",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2025-06-10T00:00:00+00:00",
"value": "Made public."
}
],
"title": "Libxml: heap use after free (uaf) leads to denial of service (dos)",
"workarounds": [
{
"lang": "en",
"value": "There\u0027s no available mitigation other than avoid processing untrusted XML documents before updating to the libxml version containing the fix."
}
],
"x_redhatCweChain": "CWE-825: Expired Pointer Dereference"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2025-49794",
"datePublished": "2025-06-16T15:24:31.020Z",
"dateReserved": "2025-06-10T22:17:05.286Z",
"dateUpdated": "2025-08-07T08:57:42.694Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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