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amazonAmazonALAS2-2021-1711
HistoryOct 04, 2021 - 8:15 p.m.

Medium: glib2

2021-10-0420:15:00
alas.aws.amazon.com
7

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

7.9 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.01 Low

EPSS

Percentile

83.0%

Issue Overview:

An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. If g_byte_array_new_take() was called with a buffer of 4GB or more on a 64-bit platform, the length would be truncated modulo 2**32, causing unintended length truncation. (CVE-2021-27218)

Affected Packages:

glib2

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 glib2 to update your system.

New Packages:

aarch64:  
    glib2-2.56.1-9.amzn2.0.2.aarch64  
    glib2-devel-2.56.1-9.amzn2.0.2.aarch64  
    glib2-fam-2.56.1-9.amzn2.0.2.aarch64  
    glib2-static-2.56.1-9.amzn2.0.2.aarch64  
    glib2-tests-2.56.1-9.amzn2.0.2.aarch64  
    glib2-debuginfo-2.56.1-9.amzn2.0.2.aarch64  
  
i686:  
    glib2-2.56.1-9.amzn2.0.2.i686  
    glib2-devel-2.56.1-9.amzn2.0.2.i686  
    glib2-fam-2.56.1-9.amzn2.0.2.i686  
    glib2-static-2.56.1-9.amzn2.0.2.i686  
    glib2-tests-2.56.1-9.amzn2.0.2.i686  
    glib2-debuginfo-2.56.1-9.amzn2.0.2.i686  
  
noarch:  
    glib2-doc-2.56.1-9.amzn2.0.2.noarch  
  
src:  
    glib2-2.56.1-9.amzn2.0.2.src  
  
x86_64:  
    glib2-2.56.1-9.amzn2.0.2.x86_64  
    glib2-devel-2.56.1-9.amzn2.0.2.x86_64  
    glib2-fam-2.56.1-9.amzn2.0.2.x86_64  
    glib2-static-2.56.1-9.amzn2.0.2.x86_64  
    glib2-tests-2.56.1-9.amzn2.0.2.x86_64  
    glib2-debuginfo-2.56.1-9.amzn2.0.2.x86_64  

Additional References

Red Hat: CVE-2021-27218

Mitre: CVE-2021-27218

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

7.9 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.01 Low

EPSS

Percentile

83.0%

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