CVE-2025-4948

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The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk."}], "affected": [{"versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "3.6.5"}], "packageName": "libsoup", "collectionURL": "https://gitlab.gnome.org/GNOME/libsoup", "defaultStatus": "unaffected"}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup3", "defaultStatus": "affected", "versions": [{"version": "0:3.6.5-3.el10_0.6", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:10.0"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": 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["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2025:8481", "name": "RHSA-2025:8481", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2025:8482", "name": "RHSA-2025:8482", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2025:8663", "name": "RHSA-2025:8663", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2025-4948", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367183", "name": "RHBZ#2367183", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/449"}], "datePublic": "2025-05-19T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-191", "description": "Integer Underflow (Wrap or Wraparound)", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-191: Integer Underflow (Wrap or Wraparound)", "workarounds": [{"lang": "en", "value": "To mitigate this issue, Red Hat recommends avoiding the use of libsoup with untrusted or unauthenticated multipart HTTP message sources until updated packages are available. Administrators can deploy application-level filters or HTTP proxies that reject malformed multipart requests. It is strongly advised to apply vendor-supplied patches as soon as they are released to address this integer underflow vulnerability and restore the stability of affected services."}], "timeline": [{"lang": "en", "time": "2025-05-19T05:22:19.904Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-05-19T00:00:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank fouzhe and zkbytes for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-04T21:35:18.488Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"references": [{"url": "https://gitlab.gnome.org/GNOME/libsoup/-/work_items/449", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-30T14:27:25.331569Z", "id": "CVE-2025-4948", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"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": "2026-06-30T14:27:36.179Z"}}]}}

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applications to handle web communications. The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en la funci\u00f3n soup_multipart_new_from_message() de la librer\u00eda HTTP libsoup, com\u00fanmente utilizada por GNOME y otras aplicaciones para gestionar las comunicaciones web. El problema ocurre cuando la librer\u00eda procesa mensajes multiparte especialmente manipulados. Debido a una validaci\u00f3n incorrecta, un c\u00e1lculo interno puede fallar, provocando un desbordamiento de enteros. Esto puede provocar que el programa acceda a memoria no v\u00e1lida y se bloquee. 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{"acknowledgement": "Red Hat would like to thank fouzhe and zkbytes for reporting this issue.", "affected_release": [{"advisory": "RHSA-2025:8128", "cpe": "cpe:/o:redhat:enterprise_linux:10.0", "package": "libsoup3-0:3.6.5-3.el10_0.6", "product_name": "Red Hat Enterprise Linux 10", "release_date": "2025-05-26T00:00:00Z"}, {"advisory": "RHSA-2025:9179", "cpe": "cpe:/o:redhat:rhel_els:7", "package": "libsoup-0:2.62.2-6.el7_9", "product_name": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "release_date": "2025-06-17T00:00:00Z"}, {"advisory": "RHSA-2025:8132", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "libsoup-0:2.62.3-9.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-05-26T00:00:00Z"}, {"advisory": "RHSA-2025:8132", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "libsoup-0:2.62.3-9.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-05-26T00:00:00Z"}, {"advisory": "RHSA-2025:8480", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "libsoup-0:2.62.3-1.el8_2.5", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-06-04T00:00:00Z"}, {"advisory": "RHSA-2025:8663", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "libsoup-0:2.62.3-2.el8_4.5", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-06-09T00:00:00Z"}, {"advisory": "RHSA-2025:8482", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "libsoup-0:2.62.3-2.el8_6.5", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-06-04T00:00:00Z"}, {"advisory": "RHSA-2025:8482", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "libsoup-0:2.62.3-2.el8_6.5", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-06-04T00:00:00Z"}, {"advisory": "RHSA-2025:8482", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "libsoup-0:2.62.3-2.el8_6.5", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-06-04T00:00:00Z"}, {"advisory": "RHSA-2025:8252", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "libsoup-0:2.62.3-3.el8_8.5", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2025-05-28T00:00:00Z"}, {"advisory": "RHSA-2025:8126", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "libsoup-0:2.72.0-10.el9_6.2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-26T00:00:00Z"}, {"advisory": "RHSA-2025:8481", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "libsoup-0:2.72.0-8.el9_0.5", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-06-04T00:00:00Z"}, {"advisory": "RHSA-2025:8140", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "libsoup-0:2.72.0-8.el9_2.5", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2025-05-26T00:00:00Z"}, {"advisory": "RHSA-2025:8139", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "libsoup-0:2.72.0-8.el9_4.5", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-05-26T00:00:00Z"}], "bugzilla": {"description": "libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup", "id": "2367183", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367183"}, "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-191", "details": ["A flaw was found in the soup_multipart_new_from_message() function of the libsoup HTTP library, which is commonly used by GNOME and other applications to handle web communications. The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk.", "A flaw was found in the soup_multipart_new_from_message() function of the libsoup HTTP library, which is commonly used by GNOME and other applications to handle web communications. The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, Red Hat recommends avoiding the use of libsoup with untrusted or unauthenticated multipart HTTP message sources until updated packages are available. Administrators can deploy application-level filters or HTTP proxies that reject malformed multipart requests. It is strongly advised to apply vendor-supplied patches as soon as they are released to address this integer underflow vulnerability and restore the stability of affected services."}, "name": "CVE-2025-4948", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libsoup", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2025-05-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-4948\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-4948"], "statement": "The Red Hat Product Security team has assessed the severity of this vulnerability as High, given that it can be remotely triggered without authentication or user interaction. Successful exploitation allows an attacker to crash services or applications relying on libsoup for HTTP multipart message processing. The vulnerability\u2019s root cause is a lack of proper bounds checking that results in an integer underflow and subsequent denial-of-service.", "threat_severity": "Important"}

{}