An issue was discovered in the Linux kernel through 4.18.8.

Affected versions

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

• canonical ubuntu linux14.04
• canonical ubuntu linux16.04
• canonical ubuntu linux18.04
• debian debian linux8.0
• debian debian linux9.0
• linux linux kernel4.15 and later · before 4.18.9
• linux linux kernel3.16 and later · before 3.16.58
• linux linux kernel3.17 and later · before 3.18.123
• linux linux kernel3.19 and later · before 4.4.157
• linux linux kernel4.5 and later · before 4.9.128
• linux linux kernel4.10 and later · before 4.14.71
• netapp active iq performance analytics servicesall versions
• netapp element softwareall versions

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

Published before and after this one in the same product

• ← EarlierCVE-2018-14641Sep 18, 2018 · A security flaw was found in the ip_frag_reasm() function in net/ipv4/ip_fragment.c in the Linux kernel from 4.19-rc1 to 4.19-rc3 inclusive,
  24Monitor
• ← EarlierCVE-2018-6693Sep 18, 2018 · Endpoint Security for Linux Threat Prevention (ENSLTP) privilege escalation vulnerability
  21Monitor
• Later →CVE-2018-16597Sep 21, 2018 · An issue was discovered in the Linux kernel before 4.8.
  22Monitor

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

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

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

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.