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{"acknowledgement": "Red Hat would like to thank Sovereign Tech Resilience program (Sovereign Tech Agency) and treeplus for reporting this issue.", "bugzilla": {"description": "glib: GLib: Buffer underflow in GVariant parser leads to heap corruption", "id": "2419093", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2419093"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "(CWE-122|CWE-190)", "details": ["A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap corruption, leading to a denial of service or potential code execution via a buffer-underflow in the GVariant parser when processing maliciously crafted input strings."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2025-14087", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "bootc", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "glib2", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "glycin-loaders", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "loupe", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "mingw-glib2", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "papers", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "rpm-ostree", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "glib2", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "glib2", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "glib2", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "librsvg2", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "mingw-glib2", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "bootc", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "glib2", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "librsvg2", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "mingw-glib2", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-14087\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-14087"], "statement": "The highest threat is to system availability due to potential application crashes when processing maliciously crafted input strings through GLib's GVariant parser. This issue affects applications that utilize g_variant_parse() on untrusted data, leading to memory corruption and possible denial of service.", "threat_severity": "Moderate"}

{"analysis": {"en": {"generated_at": "2026-04-20T15:27:02.913357+00:00", "value": {"mitigation_remediation": ["Apply the security update provided in RHSA-2026:7461 to install a patched version of GLib; this is the official vendor solution.", "Ensure that any input parsed by GVariant is strictly validated and originates from trusted sources; reject or sanitize malformed or oversized strings before they reach the parser.", "If a patch cannot be applied immediately, restrict the scope of the vulnerable library by running affected services in isolated containers or with mandatory access controls such as SELinux to contain potential code execution."], "summary": {"action": "Apply Patch", "impact": "Potential Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the GNOME GLib library and a range of Red\u202fHat Enterprise Linux releases from 6 up through 10, including Red\u202fHat Hardened Images. Any system that relies on the vulnerable version of GLib may be impacted, especially services that parse untrusted data with GVariant.", "description_and_impact": "A buffer\u2011underflow flaw in GLib\u2019s GVariant parser can corrupt heap memory when processing maliciously crafted strings. The consequence is a denial of service or, in the worst case, arbitrary code execution as the corrupted memory can be leveraged to overwrite critical data structures. The weakness is classified as a heap based buffer overflow (CWE\u2011122) and involves integer conversion errors (CWE\u2011190).", "risk_and_exploitability": "The CVSS score of 5.6 indicates a moderate severity, and the EPSS score of less than 1% implies a low probability of exploitation at the time of analysis. The vulnerability is not listed in the CISA KEV catalog. The likely attack vector is a remote attacker supplying malicious input to an application that uses the vulnerable GVariant parser; this requires the attacker to have a path to inject or influence the data processed by the parser."}}}}, "created": "2026-04-20T15:30:06.172753+00:00", "updated": "2026-04-20T15:30:06.172763+00:00", "vendors": [], "weaknesses": ["CWE-122", "CWE-190"]}