CVE-2026-90781

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{"bugzilla": {"description": "alsa-lib: alsa-lib: Denial of Service via off-by-one stack buffer overflow", "id": "2532707", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532707"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["A flaw was found in alsa-lib. This vulnerability is an off-by-one stack buffer overflow in the `__snd_ctl_ascii_elem_id_parse()` function. A local attacker can exploit this by supplying a specially crafted, long control-element identifier string through saved state files or command-line arguments. This can cause the application to write one byte past a 64-byte buffer, leading to adjacent stack memory corruption and a crash of the calling process, resulting in a Denial of Service (DoS)."], "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-2026-90781", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "alsa-lib", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "alsa-lib", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "alsa-lib", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "alsa-lib", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "alsa-lib", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "alsa-lib", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-09-13T12:22:01Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-90781\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-90781\nhttps://github.com/alsa-project/alsa-lib\nhttps://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/control/ctlparse.c#L216-L241\nhttps://github.com/alsa-project/alsa-lib/commit/f84cd4ced7b36fddb8e4ee24404cf7c091d27020\nhttps://lore.kernel.org/alsa-devel/CACBQ=P2FhO3M6dkv3cWuKb6Qhs92ouV+FJ3SJZ_PVBSSdJWRAQ@mail.gmail.com/\nhttps://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-off-by-one-stack-buffer-overflow-in-snd-ctl-ascii-elem-id-parse"], "threat_severity": "Moderate"}

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