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CVE-2022-48732— drm/nouveau: fix off by one in BIOS boundary checking

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 drm/nouveau 模块 BIOS 存在越界问题。

AI Predicted 4.3 Difficulty: Theoretical EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1564.008 · Email Hiding Rules

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< d4b746e60fd8eaa8016e144223abe91158edcdad affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< 909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2 affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< b2a21669ee98aafc41c6d42ef15af4dab9e6e882 affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< acc887ba88333f5fec49631f12d8cc7ebd95781c affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< f071d9fa857582d7bd77f4906691f73d3edeab73 affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< d877e814a62b7de9069aeff8bc1d979dfc996e06 affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< e7c36fa8a1e63b08312162179c78a0c7795ea369 affected
4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077< 1b777d4d9e383d2744fc9b3a09af6ec1893c8b1a affected
… +10 more rows
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I. Basic Information for CVE-2022-48732

Vulnerability Information
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Vulnerability Title
drm/nouveau: fix off by one in BIOS boundary checking
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix off by one in BIOS boundary checking Bounds checking when parsing init scripts embedded in the BIOS reject access to the last byte. This causes driver initialization to fail on Apple eMac's with GeForce 2 MX GPUs, leaving the system with no working console. This is probably only seen on OpenFirmware machines like PowerPC Macs because the BIOS image provided by OF is only the used parts of the ROM, not a power-of-two blocks read from PCI directly so PCs always have empty bytes at the end that are never accessed.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 drm/nouveau 模块 BIOS 存在越界问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 ~ d4b746e60fd8eaa8016e144223abe91158edcdad -
Linux Linux 4.8 -

II. Public POCs for CVE-2022-48732

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III. Intelligence Information for CVE-2022-48732

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Other References for CVE-2022-48732 (8)

Same Patch Batch · Linux · 2024-06-20 · 67 CVEs total

CVE-2022-48711 9.8 CRITICAL tipc: improve size validations for received domain records
CVE-2024-38620 8.8 HIGH Bluetooth: HCI: Remove HCI_AMP support
CVE-2021-47620 8.1 HIGH Bluetooth: refactor malicious adv data check
CVE-2022-48743 8.1 HIGH net: amd-xgbe: Fix skb data length underflow
CVE-2022-48720 7.8 HIGH net: macsec: Fix offload support for NETDEV_UNREGISTER event
CVE-2022-48716 7.8 HIGH ASoC: codecs: wcd938x: fix incorrect used of portid
CVE-2022-48771 7.8 HIGH drm/vmwgfx: Fix stale file descriptors on failed usercopy
CVE-2022-48751 7.8 HIGH net/smc: Transitional solution for clcsock race issue
CVE-2022-48742 7.8 HIGH rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
CVE-2022-48754 7.8 HIGH phylib: fix potential use-after-free
CVE-2022-48733 7.8 HIGH btrfs: fix use-after-free after failure to create a snapshot
CVE-2022-48721 7.8 HIGH net/smc: Forward wakeup to smc socket waitqueue after fallback
CVE-2022-48762 7.8 HIGH arm64: extable: fix load_unaligned_zeropad() reg indices
CVE-2022-48726 7.8 HIGH RDMA/ucma: Protect mc during concurrent multicast leaves
CVE-2022-48735 7.8 HIGH ALSA: hda: Fix UAF of leds class devs at unbinding
CVE-2022-48729 7.8 HIGH IB/hfi1: Fix panic with larger ipoib send_queue_size
CVE-2022-48759 7.8 HIGH rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev
CVE-2022-48744 7.5 HIGH net/mlx5e: Avoid field-overflowing memcpy()
CVE-2022-48727 7.3 HIGH KVM: arm64: Avoid consuming a stale esr value when SError occur
CVE-2022-48739 7.1 HIGH ASoC: hdmi-codec: Fix OOB memory accesses

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48732

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