{"id":"CVE-2025-14177","state":"PUBLISHED","title":"Information Leak of Memory in getimagesize","description":"In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode (such as via php://filter). This occurs due to a bug in php_read_stream_all_chunks() that overwrites the buffer without advancing the pointer, leaving tail bytes uninitialized. This may lead to information disclosure of sensitive heap data and affect the confidentiality of the target server.","publishedAt":"2025-12-27T19:33:23.973Z","updatedAt":"2025-12-29T16:01:36.231Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N","source":"php"},"assigner":"php","products":["PHP Group PHP"],"affected":[{"vendor":"PHP Group","product":"PHP","packageName":"php","defaultStatus":"affected","versions":[{"version":"8.1.*","status":"affected","lessThan":"8.1.34","versionType":"semver"},{"version":"8.2.*","status":"affected","lessThan":"8.2.30","versionType":"semver"},{"version":"8.3.*","status":"affected","lessThan":"8.3.29","versionType":"semver"},{"version":"8.4.*","status":"affected","lessThan":"8.4.16","versionType":"semver"},{"version":"8.5.*","status":"affected","lessThan":"8.5.1","versionType":"semver"}]}],"references":["https://github.com/php/php-src/security/advisories/GHSA-3237-qqm7-mfv7"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/14xxx/CVE-2025-14177.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-14177","state":"PUBLISHED","datePublished":"2025-12-27T19:33:23.973Z","dateUpdated":"2025-12-29T16:01:36.231Z","assignerShortName":"php","assignerOrgId":"dd77f84a-d19a-4638-8c3d-a322d820ed2b","dateReserved":"2025-12-06T06:23:06.907Z"},"containers":{"cna":{"title":"Information Leak of Memory in getimagesize","descriptions":[{"lang":"en","value":"In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode (such as via php://filter). This occurs due to a bug in php_read_stream_all_chunks() that overwrites the buffer without advancing the pointer, leaving tail bytes uninitialized. This may lead to information disclosure of sensitive heap data and affect the confidentiality of the target server."}],"affected":[{"vendor":"PHP Group","product":"PHP","packageName":"php","defaultStatus":"affected","versions":[{"version":"8.1.*","status":"affected","lessThan":"8.1.34","versionType":"semver"},{"version":"8.2.*","status":"affected","lessThan":"8.2.30","versionType":"semver"},{"version":"8.3.*","status":"affected","lessThan":"8.3.29","versionType":"semver"},{"version":"8.4.*","status":"affected","lessThan":"8.4.16","versionType":"semver"},{"version":"8.5.*","status":"affected","lessThan":"8.5.1","versionType":"semver"}]}],"references":[{"url":"https://github.com/php/php-src/security/advisories/GHSA-3237-qqm7-mfv7"}],"metrics":[{"cvssV4_0":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"php","orgId":"dd77f84a-d19a-4638-8c3d-a322d820ed2b","dateUpdated":"2025-12-27T19:33:23.973Z"},"credits":[{"lang":"en","type":"reporter","value":"Nikita Sveshnikov (Positive Technologies)"}],"datePublic":"2025-12-18T00:00:00.000Z","source":{"advisory":"GHSA-3237-qqm7-mfv7","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-29T16:01:25.714908Z","id":"CVE-2025-14177","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-29T16:01:36.231Z"}}]}}}