ZeroDay Findings
Sign inSign up

Findings

CVE-2020-1751

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC.

Published Apr 17, 2020 · updated Oct 14, 2026 · gnu glibc

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 17, 2020 · NIST NVD

    Detected

    An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

  2. Oct 14, 2026 · NIST NVD

    Updated

    An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

Affected

  • cpe canonical/ubuntu linux16.04
  • cpe canonical/ubuntu linux18.04
  • cpe canonical/ubuntu linux19.10
  • cpe gnu/glibcversion unspecified
  • cpe redhat/enterprise linux8.0

Sources

  • CVE.orgVulnerability recordCVE-2020-1751

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-1751

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2020-1751

    An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code executi

    nvd.nist.gov

References