CVE-2025-2784: Out-of-bounds Read
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.
AI Analysis
Technical Summary
CVE-2025-2784 is a high-severity vulnerability identified in libsoup, a GNOME HTTP client/server library widely used in Linux environments, including Red Hat Enterprise Linux 10. The flaw arises from a heap buffer over-read condition within the skip_insight_whitespace() function, which is responsible for parsing and sniffing HTTP content. Specifically, when libsoup processes a crafted HTTP response from a malicious server, it may read one byte beyond the allocated buffer boundary. This out-of-bounds read can lead to information disclosure or memory corruption. Although the vulnerability requires a remote attacker to control the HTTP server and send a specially crafted response, no authentication or user interaction is needed to trigger the flaw. The CVSS 3.1 base score is 7.0, reflecting a network attack vector with high impact on availability and low to moderate impact on confidentiality and integrity. The vulnerability does not currently have known exploits in the wild, but its presence in a core networking library used by many applications makes it a significant risk. The flaw could potentially be leveraged to cause application crashes or enable further exploitation chains, depending on the context of the affected application using libsoup.
Potential Impact
For European organizations, this vulnerability poses a risk primarily to systems running Red Hat Enterprise Linux 10 or other distributions that incorporate the vulnerable libsoup version. Since libsoup is commonly used in GNOME-based desktop environments and various networked applications, the vulnerability could affect both server and client-side software. The out-of-bounds read could lead to denial of service conditions by crashing applications or services relying on libsoup, impacting availability. Additionally, although the direct confidentiality and integrity impacts are rated low, attackers might use this flaw as a stepping stone for more complex attacks, potentially exposing sensitive data or compromising system integrity. Organizations in sectors with high reliance on Linux infrastructure, such as finance, telecommunications, and government, may face operational disruptions or targeted attacks exploiting this vulnerability. Given the network-based attack vector and no requirement for user interaction, automated scanning and exploitation attempts could increase once proof-of-concept code becomes available, emphasizing the need for timely mitigation.
Mitigation Recommendations
To mitigate CVE-2025-2784, European organizations should prioritize updating libsoup to a patched version provided by Red Hat or their Linux distribution vendors as soon as it becomes available. In the interim, network-level controls can reduce exposure by restricting access to internal services that utilize libsoup from untrusted networks. Employing application-layer firewalls or HTTP proxies to sanitize or block suspicious HTTP responses may help mitigate risk. Monitoring network traffic for anomalous HTTP responses and implementing intrusion detection systems tuned to detect malformed HTTP payloads can provide early warning of exploitation attempts. Additionally, organizations should audit their software inventory to identify all applications and services dependent on libsoup and ensure they are included in patch management processes. Security teams should also review logs for crashes or unusual behavior in applications using libsoup to detect potential exploitation.
Affected Countries
Germany, France, United Kingdom, Netherlands, Italy, Spain, Poland, Sweden
CVE-2025-2784: Out-of-bounds Read
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.
AI-Powered Analysis
Technical Analysis
CVE-2025-2784 is a high-severity vulnerability identified in libsoup, a GNOME HTTP client/server library widely used in Linux environments, including Red Hat Enterprise Linux 10. The flaw arises from a heap buffer over-read condition within the skip_insight_whitespace() function, which is responsible for parsing and sniffing HTTP content. Specifically, when libsoup processes a crafted HTTP response from a malicious server, it may read one byte beyond the allocated buffer boundary. This out-of-bounds read can lead to information disclosure or memory corruption. Although the vulnerability requires a remote attacker to control the HTTP server and send a specially crafted response, no authentication or user interaction is needed to trigger the flaw. The CVSS 3.1 base score is 7.0, reflecting a network attack vector with high impact on availability and low to moderate impact on confidentiality and integrity. The vulnerability does not currently have known exploits in the wild, but its presence in a core networking library used by many applications makes it a significant risk. The flaw could potentially be leveraged to cause application crashes or enable further exploitation chains, depending on the context of the affected application using libsoup.
Potential Impact
For European organizations, this vulnerability poses a risk primarily to systems running Red Hat Enterprise Linux 10 or other distributions that incorporate the vulnerable libsoup version. Since libsoup is commonly used in GNOME-based desktop environments and various networked applications, the vulnerability could affect both server and client-side software. The out-of-bounds read could lead to denial of service conditions by crashing applications or services relying on libsoup, impacting availability. Additionally, although the direct confidentiality and integrity impacts are rated low, attackers might use this flaw as a stepping stone for more complex attacks, potentially exposing sensitive data or compromising system integrity. Organizations in sectors with high reliance on Linux infrastructure, such as finance, telecommunications, and government, may face operational disruptions or targeted attacks exploiting this vulnerability. Given the network-based attack vector and no requirement for user interaction, automated scanning and exploitation attempts could increase once proof-of-concept code becomes available, emphasizing the need for timely mitigation.
Mitigation Recommendations
To mitigate CVE-2025-2784, European organizations should prioritize updating libsoup to a patched version provided by Red Hat or their Linux distribution vendors as soon as it becomes available. In the interim, network-level controls can reduce exposure by restricting access to internal services that utilize libsoup from untrusted networks. Employing application-layer firewalls or HTTP proxies to sanitize or block suspicious HTTP responses may help mitigate risk. Monitoring network traffic for anomalous HTTP responses and implementing intrusion detection systems tuned to detect malformed HTTP payloads can provide early warning of exploitation attempts. Additionally, organizations should audit their software inventory to identify all applications and services dependent on libsoup and ensure they are included in patch management processes. Security teams should also review logs for crashes or unusual behavior in applications using libsoup to detect potential exploitation.
Affected Countries
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Technical Details
- Data Version
- 5.1
- Assigner Short Name
- redhat
- Date Reserved
- 2025-03-25T01:57:20.112Z
- Cisa Enriched
- true
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 682cd0fc1484d88663aecba6
Added to database: 5/20/2025, 6:59:08 PM
Last enriched: 7/30/2025, 12:45:22 AM
Last updated: 8/5/2025, 12:34:51 AM
Views: 10
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