CVE-2020-29652: Null Pointer Dereference
First published: Wed Dec 16 2020(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/golang.org/x/crypto | <0.0.0-20201216223049-8b5274cf687f | 0.0.0-20201216223049-8b5274cf687f |
| Golang Ssh | <=0.0.0-20201203163018-be400aefbc4c | |
| redhat/golang.org/x/crypto v0.0.0-20201216223049 | <8 | 8 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2020-29652
- https://go-review.googlesource.com/c/crypto/+/278852
- https://groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1
- https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3E
- https://go.dev/cl/278852
- https://go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8
- https://pkg.go.dev/vuln/GO-2021-0227
- https://github.com/advisories/GHSA-3vm4-22fp-5rfm (Advisory)
- https://www.cve.org/CVERecord?id=CVE-2020-29652 https://nvd.nist.gov/vuln/detail/CVE-2020-29652 https://groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1
- https://bugzilla.redhat.com/show_bug.cgi?id=1908883
- https://access.redhat.com/errata/RHSA-2021:1796
- https://access.redhat.com/errata/RHSA-2020:5633
- https://access.redhat.com/errata/RHSA-2021:0799
- https://access.redhat.com/security/cve/cve-2020-29652
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1927095
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1927094
- https://access.redhat.com/errata/RHSA-2021:2920
- https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff%40%3Cnotifications.skywalking.apache.org%3E
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2020-29652?
CVE-2020-29652 is a null pointer dereference vulnerability in the golang.org/x/crypto/ssh component.
How does CVE-2020-29652 impact golang.org/x/crypto?
CVE-2020-29652 can allow an attacker to craft an ssh client connection using the `gssapi-with-mic` authentication method and cause the server to panic.
Which software versions are affected by CVE-2020-29652?
Versions up to 0.0.0-20201216223049 of the golang.org/x/crypto package are affected.
What is the severity of CVE-2020-29652?
The severity of CVE-2020-29652 is high, with a score of 7.5.
How can I fix CVE-2020-29652?
To fix CVE-2020-29652, update the golang.org/x/crypto package to version 0.0.0-20201216223049 or later.
- collector/github-advisory-latest
- alias/GHSA-3vm4-22fp-5rfm
- alias/CVE-2020-29652
- collector/github-advisory
- collector/redhat-cve
- collector/nvd-index
- collector/nvd-cve
- agent/author
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- agent/severity
- agent/weakness
- collector/redhat-bugzilla
- source/Red Hat
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/tags
- agent/description
- agent/event
- agent/trending
- package-manager/go
- vendor/golang
- canonical/golang ssh
- version/golang ssh/0.0.0-20201203163018-be400aefbc4c
- package-manager/redhat