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{"bugzilla": {"description": "kernel: squashfs: harden sanity check in squashfs_read_xattr_id_table", "id": "2355448", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355448"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsquashfs: harden sanity check in squashfs_read_xattr_id_table\nWhile mounting a corrupted filesystem, a signed integer '*xattr_ids' can\nbecome less than zero. This leads to the incorrect computation of 'len'\nand 'indexes' values which can cause null-ptr-deref in copy_bio_to_actor()\nor out-of-bounds accesses in the next sanity checks inside\nsquashfs_read_xattr_id_table().\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."], "name": "CVE-2023-52979", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52979\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52979\nhttps://lore.kernel.org/linux-cve-announce/2025032705-CVE-2023-52979-ca3f@gregkh/T"], "threat_severity": "Moderate"}