CVE-2025-4945
Publication date 19 May 2025
Last updated 17 July 2025
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libsoup2.4 | 26.10 stonking |
Fixed in 2.74.3-10.1ubuntu4
|
| 26.04 LTS resolute |
Fixed in 2.74.3-10.1ubuntu4
|
|
| 24.04 LTS noble |
Fixed in 2.74.3-6ubuntu1.6
|
|
| 22.04 LTS jammy |
Fixed in 2.74.2-3ubuntu0.6
|
|
| 20.04 LTS focal |
Fixed in 2.70.0-1ubuntu0.5+esm1
|
|
| 18.04 LTS bionic |
Fixed in 2.62.1-1ubuntu0.4+esm6
|
|
| 16.04 LTS xenial |
Fixed in 2.52.2-1ubuntu0.3+esm5
|
|
| libsoup3 | 26.10 stonking |
Fixed in 3.6.5-3
|
| 26.04 LTS resolute |
Fixed in 3.6.5-3
|
|
| 24.04 LTS noble |
Fixed in 3.4.4-5ubuntu0.5
|
|
| 22.04 LTS jammy |
Fixed in 3.0.7-0ubuntu1+esm5
|
|
| 20.04 LTS focal | Not in release |
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| Package | Patch details |
|---|---|
| libsoup3 |
Severity score breakdown
CVSS version: CVSS v3.0
Base score
3.7 · Low
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
References
Related Ubuntu Security Notices (USN)
- USN-7643-1
- libsoup vulnerabilities
- 17 July 2025