CVE-2022-2879

Unbounded memory consumption when reading headers in archive/tar

EPSS 1.5%

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.

Affected products

Go standard library · archive/tar

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References

https://go.dev/cl/439355 https://go.dev/issue/54853 https://groups.google.com/g/golang-announce/c/xtuG5faxtaU https://pkg.go.dev/vuln/GO-2022-1037 https://security.gentoo.org/glsa/202311-09