OESA-2025-1049 (CVE-2025-0238)
Vulnerability from osv_openeuler – Published: 2025-01-17 11:08 – Updated: 2026-08-06 11:08 – Source websiteMozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.
Security Fix(es):
Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, and Firefox ESR < 115.19.(CVE-2025-0238)
When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability affects Firefox < 134 and Firefox ESR < 128.6.(CVE-2025-0239)
Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability affects Firefox < 134 and Firefox ESR < 128.6.(CVE-2025-0240)
Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134 and Firefox ESR < 128.6.(CVE-2025-0243)
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"firefox-128.6.0-1.oe2403sp1.aarch64.rpm",
"firefox-debuginfo-128.6.0-1.oe2403sp1.aarch64.rpm",
"firefox-debugsource-128.6.0-1.oe2403sp1.aarch64.rpm"
],
"src": [
"firefox-128.6.0-1.oe2403sp1.src.rpm"
],
"x86_64": [
"firefox-128.6.0-1.oe2403sp1.x86_64.rpm",
"firefox-debuginfo-128.6.0-1.oe2403sp1.x86_64.rpm",
"firefox-debugsource-128.6.0-1.oe2403sp1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:24.03-LTS-SP1",
"name": "firefox",
"purl": "pkg:rpm/openEuler/firefox\u0026distro=openEuler-24.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "128.6.0-1.oe2403sp1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.\r\n\r\nSecurity Fix(es):\r\n\r\nAssuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash. This vulnerability affects Firefox \u0026amp;lt; 134, Firefox ESR \u0026amp;lt; 128.6, and Firefox ESR \u0026amp;lt; 115.19.(CVE-2025-0238)\r\n\r\nWhen using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability affects Firefox \u0026amp;lt; 134 and Firefox ESR \u0026amp;lt; 128.6.(CVE-2025-0239)\r\n\r\nParsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability affects Firefox \u0026amp;lt; 134 and Firefox ESR \u0026amp;lt; 128.6.(CVE-2025-0240)\r\n\r\nMemory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u0026amp;lt; 134 and Firefox ESR \u0026amp;lt; 128.6.(CVE-2025-0243)",
"id": "OESA-2025-1049",
"modified": "2026-08-06T11:08:08Z",
"published": "2025-01-17T11:08:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1049"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0238"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0239"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0240"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0243"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "firefox security update",
"upstream": [
"CVE-2025-0238",
"CVE-2025-0239",
"CVE-2025-0240",
"CVE-2025-0243"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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