CVE-2022-2879

Unbounded memory consumption when reading headers in archive/tar

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Reader.Read no establece un límite en el tamaño máximo de los encabezados de los archivos. Un archivo diseñado de forma maliciosa podía causar que Read asignara cantidades ilimitadas de memoria, causando potencialmente el agotamiento de los recursos o el pánico. Tras la corrección, Reader.Read limita el tamaño máximo de los bloques de encabezado a 1 MiB

A flaw was found in the golang package, where Reader.Read does not set a limit on the maximum size of file headers. After fixing, Reader.Read limits the maximum size of header blocks to 1 MiB. This flaw allows a maliciously crafted archive to cause Read to allocate unbounded amounts of memory, potentially causing resource exhaustion or panic.

*Credits: Adam Korczynski (ADA Logics), OSS-Fuzz

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-08-17 CVE Reserved
2022-10-14 CVE Published
2024-06-04 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (7)

URL	Tag	Source
https://go.dev/issue/54853	Issue Tracking
https://groups.google.com/g/golang-announce/c/xtuG5faxtaU	Mailing List
https://security.gentoo.org/glsa/202311-09

URL	Date	SRC

URL	Date	SRC
https://go.dev/cl/439355	2023-11-25

URL	Date	SRC
https://pkg.go.dev/vuln/GO-2022-1037	2023-11-25
https://access.redhat.com/security/cve/CVE-2022-2879	2024-05-22
https://bugzilla.redhat.com/show_bug.cgi?id=2132867	2024-05-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Golang Search vendor "Golang"		Go Search vendor "Golang" for product "Go"				< 1.18.7 Search vendor "Golang" for product "Go" and version " < 1.18.7"		-		Affected
Golang Search vendor "Golang"		Go Search vendor "Golang" for product "Go"				>= 1.19.0 < 1.19.2 Search vendor "Golang" for product "Go" and version " >= 1.19.0 < 1.19.2"		-		Affected