A flaw was found in the cookie parsing logic of the libsoup HTTP library, used in GNOME applications and other software. The vulnerability arises when processing the expiration date of cookies, where a specially crafted value can trigger an integer overflow. This may result in undefined behavior, allowing an attacker to bypass cookie expiration logic, causing persistent or unintended cookie behavior. The issue stems from improper validation of large integer inputs during date arithmetic operations within the cookie parsing routines.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7643-1 advisory.

    Jan Raski discovered that libsoup incorrectly handled range headers in an HTTP request. An attacker     could possibly use this issue to cause libsoup to consume excessive memory, resulting in a denial of     service. (CVE-2025-32907)

    Alon Zahavi discovered that libsoup incorrectly handled memory when parsing HTTP requests. An attacker     could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial     of service or obtaining sensitive information. This issue only affected Ubuntu 25.04. (CVE-2025-32914)

    It was discovered that libsoup incorrectly handled memory when parsing the expiration date of maliciously     crafted cookies. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-4945)

    It was discovered that libsoup incorrectly handled integer calculations when parsing multipart data. An     attacker could possibly use this issue to cause a denial of service. (CVE-2025-4948)

    It was discovered that libsoup incorrectly handled buffer reading when locating boundaries in multipart     forms. An attacker could possibly use this issue to cause a denial of service or obtain sensitive     information. (CVE-2025-4969)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:02277-1 advisory.

    - CVE-2025-4945: Add value checks for date/time parsing (bsc#1243314).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:02276-1 advisory.

    - CVE-2025-4945: Add value checks for date/time parsing (bsc#1243314).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-c04e5b95f1 advisory.

    Backport fixes for CVE-2025-4476, CVE-2025-4948, CVE-2025-4969, CVE-2025-46420, CVE-2025-46421,     CVE-2025-4945

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-3b89fef0f9 advisory.

    Backport fixes for CVE-2025-4476, CVE-2025-4948, CVE-2025-4969, CVE-2025-46420, CVE-2025-46421,     CVE-2025-4945

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
242278	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 : libsoup vulnerabilities (USN-7643-1)	Nessus	Ubuntu Local Security Checks	medium
241967	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libsoup2 (SUSE-SU-2025:02277-1)	Nessus	SuSE Local Security Checks	low
241964	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libsoup (SUSE-SU-2025:02276-1)	Nessus	SuSE Local Security Checks	low
237944	Fedora 42 : mingw-libsoup (2025-c04e5b95f1)	Nessus	Fedora Local Security Checks	medium
237939	Fedora 41 : mingw-libsoup (2025-3b89fef0f9)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2025-4945

low

Tenable Plugins

medium

low

low

medium

medium