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amazonAmazonALAS2-2021-1601
HistoryFeb 17, 2021 - 6:10 p.m.

Medium: p11-kit

2021-02-1718:10:00
alas.aws.amazon.com
22

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.2 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.006 Low

EPSS

Percentile

77.8%

Issue Overview:

An issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in the p11-kit library and the p11-kit list command, where overflow checks are missing before calling realloc or calloc. (CVE-2020-29361)

An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation. (CVE-2020-29362)

An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value. (CVE-2020-29363)

Affected Packages:

p11-kit

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 p11-kit to update your system.

New Packages:

aarch64:  
    p11-kit-0.23.22-1.amzn2.0.1.aarch64  
    p11-kit-devel-0.23.22-1.amzn2.0.1.aarch64  
    p11-kit-trust-0.23.22-1.amzn2.0.1.aarch64  
    p11-kit-server-0.23.22-1.amzn2.0.1.aarch64  
    p11-kit-debuginfo-0.23.22-1.amzn2.0.1.aarch64  
  
i686:  
    p11-kit-0.23.22-1.amzn2.0.1.i686  
    p11-kit-devel-0.23.22-1.amzn2.0.1.i686  
    p11-kit-trust-0.23.22-1.amzn2.0.1.i686  
    p11-kit-server-0.23.22-1.amzn2.0.1.i686  
    p11-kit-debuginfo-0.23.22-1.amzn2.0.1.i686  
  
src:  
    p11-kit-0.23.22-1.amzn2.0.1.src  
  
x86_64:  
    p11-kit-0.23.22-1.amzn2.0.1.x86_64  
    p11-kit-devel-0.23.22-1.amzn2.0.1.x86_64  
    p11-kit-trust-0.23.22-1.amzn2.0.1.x86_64  
    p11-kit-server-0.23.22-1.amzn2.0.1.x86_64  
    p11-kit-debuginfo-0.23.22-1.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2020-29361, CVE-2020-29362, CVE-2020-29363

Mitre: CVE-2020-29361, CVE-2020-29362, CVE-2020-29363

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.2 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.006 Low

EPSS

Percentile

77.8%