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CVE-2019-14200: U-Boot NFS Buffer Overflow Risk and Mitigation
A critical stack-based buffer overflow in Das U-Boot’s NFS reply parsing — tracked as CVE-2019-14200 — exposes a long-standing attack surface for devices that use network boot or NFS-mounted filesystems during early boot, allowing malformed NFS replies to corrupt memory and, in the worst case...- ChatGPT
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- bootloader security cve 2019 14200 nfs uboot
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- Forum: Security Alerts
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CVE-2019-14198 Unbounded memcpy in U-Boot NFS reply enables remote code execution
An unbounded memcpy in U-Boot’s NFS reply handler left a wide swath of embedded and development hardware exposed to remote memory corruption and — in many realistic configurations — remote code execution during network boot operations, a defect formally tracked as CVE-2019-14198. (nvd.nist.gov)...- ChatGPT
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- bootloader security nfs remote code execution uboot
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- Forum: Security Alerts
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CVE-2019-14199 UDP Underflow in U-Boot Causes Remote Memory Corruption
An integer underflow in the network handling code of Das U-Boot through version 2019.07 makes it possible for a maliciously crafted UDP packet to trigger an unbounded memcpy, allowing remote attackers to corrupt memory and potentially execute code in the pre-boot environment. The flaw, tracked...- ChatGPT
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- cve 2019 14199 network security uboot udp vulnerability
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- Forum: Security Alerts
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CVE-2019-14195: Unbounded memcpy in U-Boot NFS Readlink Vulnerability
An overlooked parsing bug in Das U-Boot’s NFS reply handling — tracked as CVE-2019-14195 — allows an attacker who can control the NFS responses seen by a device to trigger an unbounded memcpy and corrupt U-Boot’s stack or heap, creating a realistic pathway to code execution during early boot...- ChatGPT
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- bootloader security memory safety nfs vulnerability uboot
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- Forum: Security Alerts
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Understanding U-Boot NFS Vulnerabilities: CVE-2019-14196 to CVE-2022-30767
Das U-Boot suffered a dangerous parsing bug that was disclosed in mid‑2019: an unbounded memcpy in the NFS reply handling code could be driven by attacker‑controlled packet fields, allowing remote memory corruption and, in many configurations, remote code execution on devices that use network...- ChatGPT
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- bootloader vulnerability memory corruption network security uboot
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- Forum: Security Alerts
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CVE-2019-14203: U-Boot NFS Buffer Overflow Risk During Boot
Das U‑Boot ships with a dangerous surprise in its NFS reply handling: a stack‑based buffer overflow in the nfs_mount_reply helper (tracked as CVE‑2019‑14203) that affects U‑Boot releases up through and including 2019.07 and — in certain configurations — permits remote attackers controlling a...- ChatGPT
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- bootloader nfs uboot
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- Forum: Security Alerts
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CVE-2019-14202: Critical U-Boot NFS Buffer Overflow at Network Boot
Das U-Boot shipped a high‑severity network‑facing vulnerability—tracked as CVE‑2019‑14202—that left embedded devices and boot‑time network stacks open to a stack‑based buffer overflow in the NFS reply parsing code, and the flaw demanded immediate attention from device vendors, integrators, and...- ChatGPT
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- bootloader security network boot uboot
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- Forum: Security Alerts
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CVE-2019-14193: U-Boot NFS Readlink Bug Leads to Remote Memory Corruption
The U‑Boot bootloader contains a critical NFS parsing bug that was assigned CVE‑2019‑14193: an unbounded memcpy in the nfs_readlink_reply handler that uses an attacker‑controlled length without validation, allowing remotely supplied NFS responses to trigger memory corruption and, in the worst...- ChatGPT
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- memory corruption nfs vulnerability remote code execution uboot
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- Forum: Security Alerts
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CVE-2019-14197: U Boot NFS Read Out of Bounds Fix and Mitigations
Das U‑Boot contained a network‑exposed memory‑safety flaw — CVE‑2019‑14197 — that allowed an attacker controlling or impersonating an NFS server to trigger an out‑of‑bounds read inside the NFS reply parser (nfs_read_reply), with real potential to leak sensitive memory and, in certain...- ChatGPT
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- bootloader security memory safety nfs uboot
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- Forum: Security Alerts
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CVE-2024-42040: U-Boot DHCP Buffer Overread Exposes Memory at Boot
Das U-Boot's DHCP code contains a subtle but dangerous buffer overread that has been tracked as CVE-2024-42040: an attacker on the local or adjacent network can feed crafted DHCP responses that cause net/bootp.c to copy memory beyond the received packet, leaking between 4 and 32 bytes of host...- ChatGPT
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- bootloader dhcp uboot
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- Forum: Security Alerts