{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-31115", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-03-26T15:04:52.624Z", "datePublished": "2025-04-03T16:57:05.488Z", "dateUpdated": "2025-04-03T20:03:09.458Z"}, "containers": {"cna": {"title": "XZ has a heap-use-after-free bug in threaded .xz decoder", "problemTypes": [{"descriptions": [{"cweId": "CWE-366", "lang": "en", "description": "CWE-366: Race Condition within a Thread", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-416", "lang": "en", "description": "CWE-416: Use After Free", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-476", "lang": "en", "description": "CWE-476: NULL Pointer Dereference", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-826", "lang": "en", "description": "CWE-826: Premature Release of Resource During Expected Lifetime", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/tukaani-project/xz/security/advisories/GHSA-6cc8-p5mm-29w2", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/tukaani-project/xz/security/advisories/GHSA-6cc8-p5mm-29w2"}, {"name": "https://github.com/tukaani-project/xz/commit/d5a2ffe41bb77b918a8c96084885d4dbe4bf6480", "tags": ["x_refsource_MISC"], "url": "https://github.com/tukaani-project/xz/commit/d5a2ffe41bb77b918a8c96084885d4dbe4bf6480"}, {"name": "https://tukaani.org/xz/xz-cve-2025-31115.patch", "tags": ["x_refsource_MISC"], "url": "https://tukaani.org/xz/xz-cve-2025-31115.patch"}], "affected": [{"vendor": "tukaani-project", "product": "xz", "versions": [{"version": ">= 5.3.3alpha, < 5.8.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-04-03T16:57:05.488Z"}, "descriptions": [{"lang": "en", "value": "XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases."}], "source": {"advisory": "GHSA-6cc8-p5mm-29w2", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-03T17:57:35.541572Z", "id": "CVE-2025-31115", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-03T17:58:59.148Z"}}, {"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2025/04/03/1"}, {"url": "http://www.openwall.com/lists/oss-security/2025/04/03/2"}, {"url": "http://www.openwall.com/lists/oss-security/2025/04/03/3"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-04-03T20:03:09.458Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases."}, {"lang": "es", "value": "XZ Utils proporciona una librer\u00eda de compresi\u00f3n de datos de prop\u00f3sito general, adem\u00e1s de herramientas de l\u00ednea de comandos. En XZ Utils 5.3.3alpha a 5.8.0, el decodificador .xz multiproceso de liblzma presenta un error que provoca un fallo en la ejecuci\u00f3n de una entrada no v\u00e1lida. Esto afecta a use after free y a la escritura en una direcci\u00f3n basada en el puntero nulo y un desplazamiento. Las aplicaciones y librer\u00edas que utilizan la funci\u00f3n lzma_stream_decoder_mt se ven afectadas. El error se ha corregido en XZ Utils 5.8.1 y la correcci\u00f3n se ha implementado en las ramas v5.4, v5.6, v5.8 y master del repositorio Git de xz. No se crear\u00e1n nuevos paquetes de versiones a partir de las ramas estables antiguas, pero existe un parche independiente disponible para todas las versiones afectadas."}], "id": "CVE-2025-31115", "lastModified": "2025-04-07T14:18:34.453", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-04-03T17:15:30.540", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tukaani-project/xz/commit/d5a2ffe41bb77b918a8c96084885d4dbe4bf6480"}, {"source": "security-advisories@github.com", "url": "https://github.com/tukaani-project/xz/security/advisories/GHSA-6cc8-p5mm-29w2"}, {"source": "security-advisories@github.com", "url": "https://tukaani.org/xz/xz-cve-2025-31115.patch"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2025/04/03/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2025/04/03/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2025/04/03/3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-366"}, {"lang": "en", "value": "CWE-416"}, {"lang": "en", "value": "CWE-476"}, {"lang": "en", "value": "CWE-826"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2025:7524", "cpe": "cpe:/o:redhat:enterprise_linux:10.0", "package": "xz-1:5.6.2-4.el10_0", "product_name": "Red Hat Enterprise Linux 10", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "xz: XZ has a heap-use-after-free bug in threaded .xz decoder", "id": "2357249", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2357249"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "(CWE-366|CWE-416|CWE-476|CWE-826)", "details": ["XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases.", "A flaw was found in the XZ Utils library. In affected versions, the multithreaded .xz decoder in liblzma has a bug where invalid input can trigger a heap use-after-free condition, allowing writes to an address based on the null pointer plus an offset. This issue may result in a crash or other undefined behavior. Applications and libraries that use the `lzma_stream_decoder_mt` function are affected."], "name": "CVE-2025-31115", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "xz", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "xz", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "xz", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "xz", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2025-04-03T16:57:05Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-31115\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-31115\nhttps://github.com/tukaani-project/xz/commit/d5a2ffe41bb77b918a8c96084885d4dbe4bf6480\nhttps://github.com/tukaani-project/xz/security/advisories/GHSA-6cc8-p5mm-29w2\nhttps://tukaani.org/xz/xz-cve-2025-31115.patch"], "statement": "This vulnerability is rated as important severity because a flaw exists in XZ Utils multithreaded .xz decoder within liblzma. When processing specially crafted compressed input, the decoder can trigger a heap use-after-free condition and perform memory writes to an address calculated from a null pointer plus an offset. These issues can reliably cause application crashes, leading to denial of service, and may allow memory corruption that affects process stability and security. Systems or applications decompressing untrusted .xz data with multithreaded decoding are at heightened risk of disruption and compromise.", "threat_severity": "Important"}

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