CVE-2021-38185

GNU cpio through 2.13 allows attackers to execute arbitrary code via a crafted pattern file, because of a dstring.c ds_fgetstr integer overflow that triggers an out-of-bounds heap write. NOTE: it is unclear whether there are common cases where the pattern file, associated with the -E option, is untrusted data.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/fangqyi/cpiopwn	Exploit Third Party Advisory
https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00002.html	Exploit Mailing List Vendor Advisory
https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00000.html	Exploit Mailing List Vendor Advisory
https://git.savannah.gnu.org/cgit/cpio.git/commit/?id=dd96882877721703e19272fe25034560b794061b	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:cpio:*:*:*:*:*:*:*:*

Information

Published : 2021-08-07 17:15

Updated : 2021-08-16 08:35

NVD link : CVE-2021-38185

Mitre link : CVE-2021-38185

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

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Products Affected

gnu

cpio

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