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Advisory severityHigh7.0Vendor: MediumRed Hat Linux

High [CVE-2025-2784] Libsoup: heap buffer over-read in `skip_insignificant_space` when sniffing content

This high-severity Red Hat Linux advisory covers CVE-2025-2784 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2025-2784 Source published Source updated

VulniPulse record published

CVE-2025-2784
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

A flaw was found in libsoup. The package is vulnerable to a heap buffer over-read when sniffing content via the skip_insight_whitespace() function.

Libsoup clients may read one byte out-of-bounds in response to a crafted HTTP response by an HTTP server. Red Hat rates this with a Moderate impact as the flaw may be targeting Confidentiality and Integrity specific to each request.

Red Hat severity: Moderate — CVSS 7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H). Weakness: CWE-125.

Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions; Red Hat Enterprise Linux 8.8 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Extended Update Support; Red Hat Enterprise Linux 9.4 Extended Update Support; Red Hat Enterprise Linux 6.

Will not fix / out of support: Red Hat Enterprise Linux 6.

Affected products named by the advisory: Red Hat package: libsoup3.

Is CVE-2025-2784 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-2784 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2025-2784?

Upgrade to a fixed release named by Red Hat:

  • libsoup3-0:3.6.5-3.el10_0
  • libsoup-0:2.62.2-9.el7_9
  • libsoup-0:2.62.2-6.el7_9
  • libsoup-0:2.62.3-9.el8_10
  • libsoup-0:2.62.3-1.el8_2.5
  • libsoup-0:2.62.3-2.el8_4.5
  • libsoup-0:2.62.3-2.el8_6.5
  • libsoup-0:2.62.3-3.el8_8.5
  • libsoup-0:2.72.0-10.el9_6.2
  • libsoup-0:2.72.0-8.el9_0.5
  • libsoup-0:2.72.0-8.el9_2.5
  • libsoup-0:2.72.0-8.el9_4.5

12 more fixed releases are listed below.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Fixed versions
  • libsoup3-0:3.6.5-3.el10_0
  • libsoup-0:2.62.2-9.el7_9
  • libsoup-0:2.62.2-6.el7_9
  • libsoup-0:2.62.3-9.el8_10
  • libsoup-0:2.62.3-1.el8_2.5
  • libsoup-0:2.62.3-2.el8_4.5
  • libsoup-0:2.62.3-2.el8_6.5
  • libsoup-0:2.62.3-3.el8_8.5
  • libsoup-0:2.72.0-10.el9_6.2
  • libsoup-0:2.72.0-8.el9_0.5
  • libsoup-0:2.72.0-8.el9_2.5
  • libsoup-0:2.72.0-8.el9_4.5
  • RHSA-2025:7505
  • RHSA-2025:21657
  • RHSA-2025:9179
  • RHSA-2025:8132
  • RHSA-2025:8480
  • RHSA-2025:8663
  • RHSA-2025:8482
  • RHSA-2025:8252
  • RHSA-2025:8126
  • RHSA-2025:8481
  • RHSA-2025:8140
  • RHSA-2025:8139

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Currently no mitigation is available for this vulnerability.

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

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