Vulnerability identifier: #VU69449

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-29652

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
crypto
Universal components / Libraries / Libraries used by multiple products

Vendor:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when processing an authentication request message for the “gssapi-with-mic” method. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://go-review.googlesource.com/c/crypto/+/278852
http://groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1
http://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.