4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.2 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
54.0%
Issue Overview:
A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. (CVE-2021-4217)
A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. (CVE-2022-0529)
A flaw was found in Unzip. The vulnerability occurs during the conversion of a UTF-8 string to a local string that leads to a segmentation fault. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. (CVE-2022-0530)
Affected Packages:
unzip
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update unzip to update your system.
New Packages:
aarch64:
unzip-6.0-57.amzn2.0.1.aarch64
unzip-debuginfo-6.0-57.amzn2.0.1.aarch64
i686:
unzip-6.0-57.amzn2.0.1.i686
unzip-debuginfo-6.0-57.amzn2.0.1.i686
src:
unzip-6.0-57.amzn2.0.1.src
x86_64:
unzip-6.0-57.amzn2.0.1.x86_64
unzip-debuginfo-6.0-57.amzn2.0.1.x86_64
Red Hat: CVE-2021-4217, CVE-2022-0529, CVE-2022-0530
Mitre: CVE-2021-4217, CVE-2022-0529, CVE-2022-0530
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | unzip | < 6.0-57.amzn2.0.1 | unzip-6.0-57.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | aarch64 | unzip-debuginfo | < 6.0-57.amzn2.0.1 | unzip-debuginfo-6.0-57.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | i686 | unzip | < 6.0-57.amzn2.0.1 | unzip-6.0-57.amzn2.0.1.i686.rpm |
Amazon Linux | 2 | i686 | unzip-debuginfo | < 6.0-57.amzn2.0.1 | unzip-debuginfo-6.0-57.amzn2.0.1.i686.rpm |
Amazon Linux | 2 | x86_64 | unzip | < 6.0-57.amzn2.0.1 | unzip-6.0-57.amzn2.0.1.x86_64.rpm |
Amazon Linux | 2 | x86_64 | unzip-debuginfo | < 6.0-57.amzn2.0.1 | unzip-debuginfo-6.0-57.amzn2.0.1.x86_64.rpm |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.2 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
54.0%