CVE Vulnerability

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.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

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

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
https://lists.gnu.org/archive/html/bug-cpio/2021-08/msg00000.html Exploit Mailing List
https://git.savannah.gnu.org/cgit/cpio.git/commit/?id=dd96882877721703e19272fe25034560b794061b Patch Third Party Advisory
Configurations

Configuration 1

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

Published : 2021-08-08 12:15

Updated : 2021-08-16 03:35

NVD link : CVE-2021-38185

Mitre link : CVE-2021-38185

Products Affected

Cpio

Gnu

CWE
CWE-190