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  5. CVE-2020-29652

CVE-2020-29652: NULL Pointer Dereference

May 24, 2022 (updated February 8, 2023)

A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers.

References

  • github.com/advisories/GHSA-3vm4-22fp-5rfm
  • go-review.googlesource.com/c/crypto/+/278852
  • go.dev/cl/278852
  • go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8
  • groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1
  • lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3E
  • nvd.nist.gov/vuln/detail/CVE-2020-29652
  • pkg.go.dev/vuln/GO-2021-0227

Code Behaviors & Features

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Affected versions

All versions before 0.0.0-20201216223049-8b5274cf687f

Fixed versions

  • 0.0.0-20201216223049-8b5274cf687f

Solution

Upgrade to version 0.0.0-20201216223049-8b5274cf687f or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-476: NULL Pointer Dereference

Source file

go/golang.org/x/crypto/ssh/CVE-2020-29652.yml

Spotted a mistake? Edit the file on GitLab.

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