CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS
Percentile
71.5%
An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read. (CVE-2021-33643) An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read. (CVE-2021-33644) The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak. (CVE-2021-33645) The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak. (CVE-2021-33646)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Mageia | 8 | noarch | libtar | < 1.2.20-9.1 | libtar-1.2.20-9.1.mga8 |