CVE-2022-2879

Unbounded memory consumption when reading headers in archive/tar

Description

Reader.Read does not set a limit on the maximum size of file headers. A maliciously crafted archive could cause Read to allocate unbounded amounts of memory, potentially causing resource exhaustion or panics. After fix, Reader.Read limits the maximum size of header blocks to 1 MiB.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory go.dev
Affected: Go standard library archive/tar
Published at:
Updated at:

References

Link Tags
https://go.dev/issue/54853 third party advisory issue tracking
https://go.dev/cl/439355 patch
https://groups.google.com/g/golang-announce/c/xtuG5faxtaU release notes mailing list
https://pkg.go.dev/vuln/GO-2022-1037 vendor advisory
https://security.gentoo.org/glsa/202311-09

Frequently Asked Questions

What is the severity of CVE-2022-2879?
CVE-2022-2879 has been scored as a high severity vulnerability.
How to fix CVE-2022-2879?
To fix CVE-2022-2879, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-2879 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-2879 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-2879?
CVE-2022-2879 affects Go standard library archive/tar.
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