A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• canonical ubuntu linux12.04
• canonical ubuntu linux14.04
• canonical ubuntu linux16.04
• canonical ubuntu linux18.04
• canonical ubuntu linux19.04
• debian debian linux10.0
• debian debian linux8.0
• debian debian linux9.0
• fedoraproject fedora29
• fedoraproject fedora30
• huawei imanager netecov600r009c00
• huawei imanager netecov600r009c10spc200
• huawei imanager neteco 6000v600r008c10spc300
• huawei imanager neteco 6000v600r008c20
• huawei manageone6.5.0
• huawei manageone6.5.0.spc100.b210
• huawei manageone6.5.1rc1.b060
• huawei manageone6.5.1rc1.b080
• huawei manageone6.5.rc2.b050
• linux linux kernel5.2 and later · before 5.2.15

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Kernel Linux kernel

  • from version 2.6.34 to 5.2.xaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now
• CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
  83Now
• CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
  77This week
• CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
  77This week
• CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
  77This week

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.