SUSE-SU-2026:20360-1

Vulnerability from csaf_suse - Published: 2026-01-19 11:45 - Updated: 2026-01-19 11:45
Summary
Security update for libsoup

Notes

Title of the patch
Security update for libsoup
Description of the patch
This update for libsoup fixes the following issues: - CVE-2025-14523: flaw in HTTP header handling can lead to host header parsing discrepancy between servers and proxies and allow for request smuggling, cache poisoning and bypass of access controls (bsc#1254876). - CVE-2025-12105: heap use-after-free in message queue handling during HTTP/2 read completion can lead to undefined behavior or crash (bsc#1252555). - CVE-2026-0716: Fixed out-of-bounds read for websocket (bsc#1256418). - CVE-2026-0719: Fixed overflow for password md4sum (bsc#1256399).
Patchnames
SUSE-SLE-Micro-6.1-379
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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          "text": "A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missing state synchronization. This leads to a use-after-free memory access, potentially crashing the affected application. Attackers could exploit this behavior remotely by triggering specific HTTP/2 read and cancel sequences, resulting in a denial-of-service condition.",
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          "text": "A flaw in libsoup\u0027s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers.",
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          "text": "A flaw was found in libsoup\u0027s WebSocket frame processing when handling incoming messages. If a non-default configuration is used where the maximum incoming payload size is unset, the library may read memory outside the intended bounds. This can cause unintended memory exposure or a crash. Applications using libsoup\u0027s WebSocket support with this configuration may be impacted.",
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          "text": "A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.",
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          },
          "products": [
            "SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_6.1.aarch64",
            "SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_6.1.ppc64le",
            "SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_6.1.s390x",
            "SUSE Linux Micro 6.1:libsoup-3_0-0-3.4.4-slfo.1.1_6.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-01-19T11:45:24Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-0719"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.