Description
GNOME libsoup before 3.6.1 allows a buffer overflow in applications that perform conversion to UTF-8 in soup_header_parse_param_list_strict. There is a plausible way to reach this remotely via soup_message_headers_get_content_type (e.g., an application may want to retrieve the content type of a request or response).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNOME | libsoup | < 3.6.1 | 3.6.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | libsoup2.4 | 2.74.3-8.1 | — |
| Debian 13 | libsoup3 | 3.6.0-4 | — |
| Debian 12 | libsoup2.4 | 2.74.3-1+deb12u1 | — |
| Debian 12 | libsoup3 | 3.2.3-0+deb12u1 | — |
| Debian 11 | libsoup2.4 | 2.72.0-2+deb11u1 | DLA-3992-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | libsoup2.4 | 2.74.3-6ubuntu1.1 | USN-7126-1 |
| Ubuntu 24.04 LTS | libsoup3 | 3.4.4-5ubuntu0.1 | USN-7127-1 |
| Ubuntu 22.04 LTS | libsoup2.4 | 2.74.2-3ubuntu0.1 | USN-7126-1 |
| Ubuntu 20.04 LTS | libsoup2.4 | 2.70.0-1ubuntu0.1 | USN-7126-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | libsoup3 | 3.0.7-0ubuntu1+esm1 | USN-7127-1 |
| Ubuntu Pro 18.04 LTS | libsoup2.4 | 2.62.1-1ubuntu0.4+esm1 | USN-7565-1, USN-7126-1 |
| Ubuntu Pro 16.04 LTS | libsoup2.4 | 2.52.2-1ubuntu0.3+esm4 | USN-7565-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | libsoup +1 | 2.72.0-8.el9_5.3 | RHSA-2025:0791 |
| RHEL 8 | libsoup +1 | 2.62.3-7.el8_10 | RHSA-2025:0838 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | libsoup +1 | 2.72.0-8.el9_4.3 | RHSA-2025:0848 |
| RHEL 9.2 EUS | libsoup +1 | 2.72.0-8.el9_2.3 | RHSA-2025:0847 |
| RHEL 9.0 E4S | libsoup +1 | 2.72.0-8.el9_0.3 | RHSA-2025:0882 |
| RHEL 8.8 EUS | libsoup +1 | 2.62.3-3.el8_8.2 | RHSA-2025:1075 |
| RHEL 8.6 TUS | libsoup +1 | 2.62.3-2.el8_6.2 | RHSA-2025:0949 |
| RHEL 8.6 E4S | libsoup +1 | 2.62.3-2.el8_6.2 | RHSA-2025:0949 |
| RHEL 8.6 AUS | libsoup +1 | 2.62.3-2.el8_6.2 | RHSA-2025:0949 |
| RHEL 8.4 TUS | libsoup +1 | 2.62.3-2.el8_4.2 | RHSA-2025:0889 |
| RHEL 8.4 E4S | libsoup +1 | 2.62.3-2.el8_4.2 | RHSA-2025:0889 |
| RHEL 8.4 AUS | libsoup +1 | 2.62.3-2.el8_4.2 | RHSA-2025:0889 |
| RHEL 8.2 AUS | libsoup | 2.62.3-1.el8_2.2 | RHSA-2025:0903 |
| RHEL 7 ELS | libsoup +1 | 2.62.2-4.el7_9 | RHSA-2025:1047 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | libsoup +1 | 2.72.0-8.el9_5.3 | ALSA-2025:0791 |
| AlmaLinux 8 | libsoup +1 | 2.62.3-7.el8_10 | ALSA-2025:0838 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | libsoup | 2.72.0-8.el9_5.3 | RLSA-2025:0791 |
| Rocky Linux 8 | libsoup | 2.62.3-7.el8_10 | RLSA-2025:0838 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | libsoup | 3.4.4-150600.3.3.1 | SUSE-SU-2024:4355-1 |
| SLES 15 SP6 | libsoup2 | 2.74.3-150600.4.3.1 | SUSE-SU-2024:4290-1 |
| SLES 15 SP5 | libsoup | 3.0.4-150400.3.3.1 | SUSE-SU-2024:4352-1 |
| SLES 15 SP5 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SLES 15 SP4 | libsoup | 3.0.4-150400.3.3.1 | SUSE-SU-2024:4352-1 |
| SLES 15 SP4 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SLES 15 SP3 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
| SLES 15 SP2 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | libsoup | 2.62.2-5.12.1 | SUSE-SU-2025:1518-1 |
| SLES for SAP 15 SP4 | libsoup | 3.0.4-150400.3.3.1 | SUSE-SU-2024:4352-1 |
| SLES for SAP 15 SP4 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SLES for SAP 15 SP3 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
| SLES for SAP 15 SP2 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
| SLE Micro 6.1 | libsoup | 3.4.4-slfo.1.1_2.1 | SUSE-SU-2025:20252-1 |
| SLE Micro 6.0 | libsoup | 3.4.2-5.1 | SUSE-SU-2025:20105-1 |
| SLE Micro 5.5 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SLE Micro 5.4 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SLE Micro 5.3 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SLE Micro 5.2 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
| SLE HPC 15 SP4 | libsoup | 3.0.4-150400.3.3.1 | SUSE-SU-2024:4352-1 |
| SLE HPC 15 SP4 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SLE HPC 15 SP3 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
| SLE HPC 15 SP2 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
| SUSE Manager Server 4.3 | libsoup | 3.0.4-150400.3.3.1 | SUSE-SU-2024:4352-1 |
| SUSE Manager Server 4.3 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SUSE Manager Proxy 4.3 | libsoup | 3.0.4-150400.3.3.1 | SUSE-SU-2024:4352-1 |
| SUSE Manager Proxy 4.3 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
| SUSE Enterprise Storage 7.1 | libsoup | 2.68.4-150200.4.3.1 | SUSE-SU-2024:4365-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsoup | 3.6.0-2.1 | openSUSE-SU-2024:14488-1 |
| openSUSE Tumbleweed | libsoup2 | 2.74.3-4.1 | openSUSE-SU-2024:14489-1 |
| openSUSE Leap 15.6 | libsoup | 3.4.4-150600.3.3.1 | SUSE-SU-2024:4355-1 |
| openSUSE Leap 15.6 | libsoup2 | 2.74.3-150600.4.3.1 | SUSE-SU-2024:4290-1 |
| openSUSE Leap 15.5 | libsoup | 3.0.4-150400.3.3.1 | SUSE-SU-2024:4352-1 |
| openSUSE Leap 15.5 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | libsoup2 | 2.74.2-150400.3.3.1 | SUSE-SU-2024:4349-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libsoup +2 | 2.72.0-6.amzn2023.0.3 | ALAS2023-2024-772 |
| Amazon Linux 2 | libsoup +1 | 2.56.0-6.amzn2.0.1 | ALAS2-2024-2705 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libsoup | 3.4.4-2 | — |
| Azure Linux 2 (CBL-Mariner) | libsoup | 3.0.4-2 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | libsoup +1 | 2.72.0-8.el9_5.3 | ELSA-2025-0791 |
| Oracle Linux 8 | libsoup +1 | 2.62.3-7.el8_10 | ELSA-2025-0838 |
| Oracle Linux 7 | libsoup +1 | 2.62.2-2.0.3.el7 | ELSA-2025-1047 |
Advisories 34
- ALSA-2025:0791 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:0838 Important: libsoup security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2024-3436 GNOME: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 15, 2026
- RHSA-2025:1075 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:1047 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0949 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0903 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0889 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0882 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0847 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0848 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0838 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2025:0791 Red Hat Security Advisory: libsoup security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- USN-7565-1 libsoup2.4 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-7126-1 libsoup2.4 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-7127-1 libsoup3 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2025:20252-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20105-1 Security update for libsoup SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-3992-1 libsoup2.4 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2025:0791 Important: libsoup security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2025:0838 Important: libsoup security update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:14489-1 libsoup-2_4-1-2.74.3-4.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4290-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1518-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4365-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14488-1 libsoup-3_0-0-3.6.0-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4352-1 Security update for libsoup SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4349-1 Security update for libsoup2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4355-1 Security update for libsoup SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2025-1047 Important: libsoup security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 20, 2025
- ELSA-2025-0838 Important: libsoup security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jan 30, 2025
- ELSA-2025-0791 Important: libsoup security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 29, 2025
- ALAS2-2024-2705 Important: libsoup security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 19, 2024
- ALAS2023-2024-772 Important: libsoup security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Dec 16, 2024
References
- https://gitlab.gnome.org/Teams/Releng/security/-/wikis/home
- https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/407
- https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/407#note_2316401
- https://offsec.almond.consulting/using-aflplusplus-on-bug-bounty-programs-an-example-with-gnome-libsoup.html