{"id":"UBUNTU-CVE-2025-4948","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.","modified":"2026-05-20T16:23:33.582637019Z","published":"2025-05-19T16:15:00Z","related":["USN-7643-1"],"upstream":["CVE-2025-4948"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-4948"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-4948"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-4948"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7643-1"}],"affected":[{"package":{"name":"libsoup2.4","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libsoup2.4?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.52.2-1ubuntu0.3+esm5"}]}],"versions":["2.50.0-2debian1","2.52.1-1","2.52.2-1","2.52.2-1ubuntu0.1","2.52.2-1ubuntu0.2","2.52.2-1ubuntu0.3","2.52.2-1ubuntu0.3+esm1","2.52.2-1ubuntu0.3+esm2","2.52.2-1ubuntu0.3+esm3","2.52.2-1ubuntu0.3+esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"2.52.2-1ubuntu0.3+esm5","binary_name":"gir1.2-soup-2.4"},{"binary_version":"2.52.2-1ubuntu0.3+esm5","binary_name":"libsoup-gnome2.4-1"},{"binary_version":"2.52.2-1ubuntu0.3+esm5","binary_name":"libsoup2.4-1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4948.json"}},{"package":{"name":"libsoup2.4","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libsoup2.4?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.62.1-1ubuntu0.4+esm6"}]}],"versions":["2.60.1-1","2.60.2-1","2.60.2-2","2.60.3-1","2.61.90-1","2.62.0-1","2.62.1-1","2.62.1-1ubuntu0.1","2.62.1-1ubuntu0.3","2.62.1-1ubuntu0.4","2.62.1-1ubuntu0.4+esm1","2.62.1-1ubuntu0.4+esm2","2.62.1-1ubuntu0.4+esm3","2.62.1-1ubuntu0.4+esm4","2.62.1-1ubuntu0.4+esm5"],"ecosystem_specific":{"binaries":[{"binary_version":"2.62.1-1ubuntu0.4+esm6","binary_name":"gir1.2-soup-2.4"},{"binary_version":"2.62.1-1ubuntu0.4+esm6","binary_name":"libsoup-gnome2.4-1"},{"binary_version":"2.62.1-1ubuntu0.4+esm6","binary_name":"libsoup2.4-1"}],"availability":"Available with 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(Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4948.json"}},{"package":{"name":"libsoup2.4","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libsoup2.4?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.74.2-3ubuntu0.6"}]}],"versions":["2.72.0-3ubuntu3","2.74.1-1","2.74.2-2","2.74.2-3","2.74.2-3ubuntu0.1","2.74.2-3ubuntu0.2","2.74.2-3ubuntu0.3","2.74.2-3ubuntu0.4","2.74.2-3ubuntu0.5"],"ecosystem_specific":{"binaries":[{"binary_version":"2.74.2-3ubuntu0.6","binary_name":"gir1.2-soup-2.4"},{"binary_version":"2.74.2-3ubuntu0.6","binary_name":"libsoup-gnome2.4-1"},{"binary_version":"2.74.2-3ubuntu0.6","binary_name":"libsoup2.4-1"},{"binary_version":"2.74.2-3ubuntu0.6","binary_name":"libsoup2.4-common"},{"binary_version":"2.74.2-3ubuntu0.6","binary_name":"libsoup2.4-tests"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4948.json"}},{"package":{"name":"libsoup3","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/libsoup3?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.7-0ubuntu1+esm5"}]}],"versions":["3.0.4-2","3.0.4-3","3.0.5-1","3.0.7-0ubuntu1","3.0.7-0ubuntu1+esm1","3.0.7-0ubuntu1+esm2","3.0.7-0ubuntu1+esm3","3.0.7-0ubuntu1+esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.7-0ubuntu1+esm5","binary_name":"gir1.2-soup-3.0"},{"binary_version":"3.0.7-0ubuntu1+esm5","binary_name":"libsoup-3.0-0"},{"binary_version":"3.0.7-0ubuntu1+esm5","binary_name":"libsoup-3.0-common"},{"binary_version":"3.0.7-0ubuntu1+esm5","binary_name":"libsoup-3.0-tests"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4948.json"}},{"package":{"name":"libsoup2.4","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libsoup2.4?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.74.3-6ubuntu1.6"}]}],"versions":["2.74.3-1","2.74.3-2","2.74.3-3","2.74.3-6","2.74.3-6build1","2.74.3-6ubuntu1","2.74.3-6ubuntu1.1","2.74.3-6ubuntu1.2","2.74.3-6ubuntu1.3","2.74.3-6ubuntu1.4","2.74.3-6ubuntu1.5"],"ecosystem_specific":{"binaries":[{"binary_version":"2.74.3-6ubuntu1.6","binary_name":"gir1.2-soup-2.4"},{"binary_version":"2.74.3-6ubuntu1.6","binary_name":"libsoup-2.4-1"},{"binary_version":"2.74.3-6ubuntu1.6","binary_name":"libsoup-gnome-2.4-1"},{"binary_version":"2.74.3-6ubuntu1.6","binary_name":"libsoup2.4-common"},{"binary_version":"2.74.3-6ubuntu1.6","binary_name":"libsoup2.4-tests"}],"availability":"No subscription 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