CVE-2025-2784

Libsoup: heap buffer over-read in `skip_insignificant_space` when sniffing content

MEDIUM
6.5
CVSS Score
Published: April 3, 2025 at 01:40 AM UTC
Updated: June 30, 2026 at 01:16 AM UTC
21 products affected across 2 vendorsEnterprise LinuxEnterprise Linux ServerEnterprise Linux Server Aus

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.9%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.6.5
Affected range stops below 3.6.5, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 0:2.62.2-6.el7_9 (unaffected)
Vendor states this is fixed in 0:2.62.2-9.el7_9 (unaffected)
Vendor states this is fixed in 0:2.62.3-1.el8_2.5 (unaffected)
Vendor states this is fixed in 0:2.62.3-2.el8_4.5 (unaffected)
Vendor states this is fixed in 0:2.62.3-2.el8_6.5 (unaffected)
Vendor states this is fixed in 0:2.62.3-3.el8_8.5 (unaffected)
Vendor states this is fixed in 0:2.62.3-9.el8_10 (unaffected)
Vendor states this is fixed in 0:2.72.0-10.el9_6.2 (unaffected)
Vendor states this is fixed in 0:2.72.0-8.el9_0.5 (unaffected)
Vendor states this is fixed in 0:2.72.0-8.el9_2.5 (unaffected)
Vendor states this is fixed in 0:2.72.0-8.el9_4.5 (unaffected)
Vendor states this is fixed in 0:3.6.5-3.el10_0 (unaffected)
Vendor states this is fixed in 6 (unknown)

References (16)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:7505
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:8126
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:8132
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:8139
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:8140
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:8252
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:8480
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2025:8481

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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