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amazonAmazonALAS-2022-1650
HistoryDec 01, 2022 - 5:34 p.m.

Medium: zlib

2022-12-0117:34:00
alas.aws.amazon.com
21
zlib
security vulnerability
heap-based buffer
inflate.c
gzip header
cve-2022-37434
update
new packages

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.003

Percentile

71.6%

Issue Overview:

A security vulnerability was found in zlib. The flaw triggered a heap-based buffer in inflate in the inflate.c function via a large gzip header extra field. This flaw is only applicable in the call inflateGetHeader. (CVE-2022-37434)

Affected Packages:

zlib

Issue Correction:
Run yum update zlib to update your system.

New Packages:

i686:  
    zlib-1.2.8-7.20.amzn1.i686  
    minizip-1.2.8-7.20.amzn1.i686  
    zlib-static-1.2.8-7.20.amzn1.i686  
    minizip-devel-1.2.8-7.20.amzn1.i686  
    zlib-devel-1.2.8-7.20.amzn1.i686  
    zlib-debuginfo-1.2.8-7.20.amzn1.i686  
  
src:  
    zlib-1.2.8-7.20.amzn1.src  
  
x86_64:  
    minizip-1.2.8-7.20.amzn1.x86_64  
    minizip-devel-1.2.8-7.20.amzn1.x86_64  
    zlib-debuginfo-1.2.8-7.20.amzn1.x86_64  
    zlib-static-1.2.8-7.20.amzn1.x86_64  
    zlib-1.2.8-7.20.amzn1.x86_64  
    zlib-devel-1.2.8-7.20.amzn1.x86_64  

Additional References

Red Hat: CVE-2022-37434

Mitre: CVE-2022-37434

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.003

Percentile

71.6%