High severity · published Oct 14, 2022
CVE-2022-2879
Unbounded memory consumption when reading headers in archive/tar
7.5
CVSS
2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AR
archive/tar · Go standard library
before 1.18.7; 1.19.0-0 before 1.19.2 · source: vendor
GO
GO · Golang
before 1.18.7; 1.19.0 before 1.19.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-2879
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-2879
Patch
https://go.dev/cl/439355
Issue Tracking
https://go.dev/issue/54853
Mailing List
https://groups.google.com/g/golang-announce/c/xtuG5faxtaU
Vendor Advisory
https://pkg.go.dev/vuln/GO-2022-1037
security.gentoo.org
https://security.gentoo.org/glsa/202311-09
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