{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu16.04els/vex/2023/cve-2023-4863-els_os-ubuntu16_04els.json" } ], "title": "Security update on CVE-2023-4863", "tracking": { "current_release_date": "2025-12-23T22:15:38Z", "generator": { "date": "2025-12-23T22:15:38Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-4863-ELS_OS-UBUNTU16.04ELS", "initial_release_date": "2023-09-12T15:15:00Z", "revision_history": [ { "date": "2023-09-12T15:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2025-11-29T18:01:34Z", "number": "2", "summary": "Official Publication" }, { "date": "2025-12-23T22:15:38Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Ubuntu 16.04", "product": { "name": "Ubuntu 16.04", "product_id": "Ubuntu-16", "product_identification_helper": { "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*" } } } ], "category": "product_family", "name": "Ubuntu" } ], "category": "vendor", "name": "Canonical Ltd." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64", "product": { "name": "libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64", "product_id": "libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/libwebp-dev@0.4.4-1%2Btuxcare.els1?arch=amd64" } } }, { "category": "product_version", "name": "libwebp5-0:0.4.4-1+tuxcare.els1.amd64", "product": { "name": "libwebp5-0:0.4.4-1+tuxcare.els1.amd64", "product_id": "libwebp5-0:0.4.4-1+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/libwebp5@0.4.4-1%2Btuxcare.els1?arch=amd64" } } }, { "category": "product_version", "name": "libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64", "product": { "name": "libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64", "product_id": "libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/libwebpdemux1@0.4.4-1%2Btuxcare.els1?arch=amd64" } } }, { "category": "product_version", "name": "libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64", "product": { "name": "libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64", "product_id": "libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/libwebpmux1@0.4.4-1%2Btuxcare.els1?arch=amd64" } } }, { "category": "product_version", "name": "webp-0:0.4.4-1+tuxcare.els1.amd64", "product": { "name": "webp-0:0.4.4-1+tuxcare.els1.amd64", "product_id": "webp-0:0.4.4-1+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/webp@0.4.4-1%2Btuxcare.els1?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64" }, "product_reference": "libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" }, { "category": "default_component_of", "full_product_name": { "name": "libwebp5-0:0.4.4-1+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:libwebp5-0:0.4.4-1+tuxcare.els1.amd64" }, "product_reference": "libwebp5-0:0.4.4-1+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" }, { "category": "default_component_of", "full_product_name": { "name": "libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64" }, "product_reference": "libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" }, { "category": "default_component_of", "full_product_name": { "name": "libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64" }, "product_reference": "libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" }, { "category": "default_component_of", "full_product_name": { "name": "webp-0:0.4.4-1+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:webp-0:0.4.4-1+tuxcare.els1.amd64" }, "product_reference": "webp-0:0.4.4-1+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-4863", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "notes": [ { "category": "description", "text": "Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "Ubuntu-16:libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebp5-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:webp-0:0.4.4-1+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-4863" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/21/4", "url": "http://www.openwall.com/lists/oss-security/2023/09/21/4" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/22/1", "url": "http://www.openwall.com/lists/oss-security/2023/09/22/1" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/22/3", "url": "http://www.openwall.com/lists/oss-security/2023/09/22/3" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/22/4", "url": "http://www.openwall.com/lists/oss-security/2023/09/22/4" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/22/5", "url": "http://www.openwall.com/lists/oss-security/2023/09/22/5" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/22/6", "url": "http://www.openwall.com/lists/oss-security/2023/09/22/6" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/22/7", "url": "http://www.openwall.com/lists/oss-security/2023/09/22/7" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/22/8", "url": "http://www.openwall.com/lists/oss-security/2023/09/22/8" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/26/1", "url": "http://www.openwall.com/lists/oss-security/2023/09/26/1" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/26/7", "url": "http://www.openwall.com/lists/oss-security/2023/09/26/7" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/28/1", "url": "http://www.openwall.com/lists/oss-security/2023/09/28/1" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/28/2", "url": "http://www.openwall.com/lists/oss-security/2023/09/28/2" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2023/09/28/4", "url": "http://www.openwall.com/lists/oss-security/2023/09/28/4" }, { "category": "external", "summary": "https://adamcaudill.com/2023/09/14/whose-cve-is-it-anyway/", "url": "https://adamcaudill.com/2023/09/14/whose-cve-is-it-anyway/" }, { "category": "external", "summary": "https://blog.isosceles.com/the-webp-0day/", "url": "https://blog.isosceles.com/the-webp-0day/" }, { "category": "external", "summary": "https://bugzilla.suse.com/show_bug.cgi?id=1215231", "url": "https://bugzilla.suse.com/show_bug.cgi?id=1215231" }, { "category": "external", "summary": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html", "url": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html" }, { "category": "external", "summary": "https://crbug.com/1479274", "url": "https://crbug.com/1479274" }, { "category": "external", "summary": "https://en.bandisoft.com/honeyview/history/", "url": "https://en.bandisoft.com/honeyview/history/" }, { "category": "external", "summary": "https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a", "url": "https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a" }, { "category": "external", "summary": "https://github.com/webmproject/libwebp/releases/tag/v1.3.2", "url": "https://github.com/webmproject/libwebp/releases/tag/v1.3.2" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2023/09/msg00015.html", "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00015.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2023/09/msg00016.html", "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00016.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2023/09/msg00017.html", "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00017.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FYYKLG6CRGEDTNRBSU26EEWAO6D6U645/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FYYKLG6CRGEDTNRBSU26EEWAO6D6U645/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OZDGWWMJREPAGKWCJKSCM4WYLANSKIFX/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OZDGWWMJREPAGKWCJKSCM4WYLANSKIFX/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYZV7TMKF4QHZ54SFJX54BDN52VHGGCX/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYZV7TMKF4QHZ54SFJX54BDN52VHGGCX/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WHOLML7N2G5KCAZXFWC5IDFFHSQS5SDB/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WHOLML7N2G5KCAZXFWC5IDFFHSQS5SDB/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I/" }, { "category": "external", "summary": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863" }, { "category": "external", "summary": "https://news.ycombinator.com/item?id=37478403", "url": "https://news.ycombinator.com/item?id=37478403" }, { "category": "external", "summary": "https://security-tracker.debian.org/tracker/CVE-2023-4863", "url": "https://security-tracker.debian.org/tracker/CVE-2023-4863" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202309-05", "url": "https://security.gentoo.org/glsa/202309-05" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202401-10", "url": "https://security.gentoo.org/glsa/202401-10" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20230929-0011/", "url": "https://security.netapp.com/advisory/ntap-20230929-0011/" }, { "category": "external", "summary": "https://sethmlarson.dev/security-developer-in-residence-weekly-report-16", "url": "https://sethmlarson.dev/security-developer-in-residence-weekly-report-16" }, { "category": "external", "summary": "https://stackdiary.com/critical-vulnerability-in-webp-codec-cve-2023-4863/", "url": "https://stackdiary.com/critical-vulnerability-in-webp-codec-cve-2023-4863/" }, { "category": "external", "summary": "https://www.bentley.com/advisories/be-2023-0001/", "url": "https://www.bentley.com/advisories/be-2023-0001/" }, { "category": "external", "summary": "https://www.bleepingcomputer.com/news/google/google-fixes-another-chrome-zero-day-bug-exploited-in-attacks/", "url": "https://www.bleepingcomputer.com/news/google/google-fixes-another-chrome-zero-day-bug-exploited-in-attacks/" }, { "category": "external", "summary": "https://www.debian.org/security/2023/dsa-5496", "url": "https://www.debian.org/security/2023/dsa-5496" }, { "category": "external", "summary": "https://www.debian.org/security/2023/dsa-5497", "url": "https://www.debian.org/security/2023/dsa-5497" }, { "category": "external", "summary": "https://www.debian.org/security/2023/dsa-5498", "url": "https://www.debian.org/security/2023/dsa-5498" }, { "category": "external", "summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2023-40/", "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2023-40/" }, { "category": "external", "summary": "https://www.vicarius.io/vsociety/posts/zero-day-webp-vulnerability-cve-2023-4863", "url": "https://www.vicarius.io/vsociety/posts/zero-day-webp-vulnerability-cve-2023-4863" }, { "category": "external", "summary": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4863", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4863" } ], "release_date": "2023-09-12T15:15:00Z", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "Ubuntu-16:libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebp5-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:webp-0:0.4.4-1+tuxcare.els1.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" }, { "category": "impact", "details": "important", "product_ids": [ "Ubuntu-16:libwebp-dev-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebp5-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebpdemux1-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:libwebpmux1-0:0.4.4-1+tuxcare.els1.amd64", "Ubuntu-16:webp-0:0.4.4-1+tuxcare.els1.amd64" ] } ] } ] }