CVE-2025-4969

Publication date 21 May 2025

Last updated 17 July 2025

Ubuntu priority

Cvss 3 Severity Score

A vulnerability was found in the libsoup package. This flaw stems from its failure to correctly verify the termination of multipart HTTP messages. This can allow a remote attacker to send a specially crafted multipart HTTP body, causing the libsoup-consuming server to read beyond its allocated memory boundaries (out-of-bounds read).

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libsoup3	25.04 plucky	Fixed 3.6.5-1ubuntu0.2
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 3.4.4-5ubuntu0.5
	22.04 LTS jammy	Fixed 3.0.7-0ubuntu1+esm5
	20.04 LTS focal	Not in release
libsoup2.4	25.04 plucky	Fixed 2.74.3-10ubuntu0.4
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 2.74.3-6ubuntu1.6
	22.04 LTS jammy	Fixed 2.74.2-3ubuntu0.6
	20.04 LTS focal	Fixed 2.70.0-1ubuntu0.5+esm1
	18.04 LTS bionic	Fixed 2.62.1-1ubuntu0.4+esm6
	16.04 LTS xenial	Fixed 2.52.2-1ubuntu0.3+esm5

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libsoup3	Upstream: https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/467

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-7643-1
libsoup vulnerabilities
17 July 2025