Medium: exim

2023-05-2517:41:00

alas.aws.amazon.com

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

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

0.004 Low

EPSS

Percentile

72.3%

JSON

Issue Overview:

Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc. (CVE-2022-37451)

Affected Packages:

exim

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

New Packages:

i686:  
    exim-4.92-1.37.amzn1.i686  
    exim-pgsql-4.92-1.37.amzn1.i686  
    exim-mysql-4.92-1.37.amzn1.i686  
    exim-debuginfo-4.92-1.37.amzn1.i686  
    exim-greylist-4.92-1.37.amzn1.i686  
    exim-mon-4.92-1.37.amzn1.i686  
  
src:  
    exim-4.92-1.37.amzn1.src  
  
x86_64:  
    exim-greylist-4.92-1.37.amzn1.x86_64  
    exim-mon-4.92-1.37.amzn1.x86_64  
    exim-mysql-4.92-1.37.amzn1.x86_64  
    exim-4.92-1.37.amzn1.x86_64  
    exim-pgsql-4.92-1.37.amzn1.x86_64  
    exim-debuginfo-4.92-1.37.amzn1.x86_64

Additional References

Red Hat: CVE-2022-37451

Mitre: CVE-2022-37451

OSVersionArchitecturePackageVersionFilename
Amazon Linux1i686exim< 4.92-1.37.amzn1exim-4.92-1.37.amzn1.i686.rpm
Amazon Linux1i686exim-pgsql< 4.92-1.37.amzn1exim-pgsql-4.92-1.37.amzn1.i686.rpm
Amazon Linux1i686exim-mysql< 4.92-1.37.amzn1exim-mysql-4.92-1.37.amzn1.i686.rpm
Amazon Linux1i686exim-debuginfo< 4.92-1.37.amzn1exim-debuginfo-4.92-1.37.amzn1.i686.rpm
Amazon Linux1i686exim-greylist< 4.92-1.37.amzn1exim-greylist-4.92-1.37.amzn1.i686.rpm
Amazon Linux1i686exim-mon< 4.92-1.37.amzn1exim-mon-4.92-1.37.amzn1.i686.rpm
Amazon Linux1x86_64exim-greylist< 4.92-1.37.amzn1exim-greylist-4.92-1.37.amzn1.x86_64.rpm
Amazon Linux1x86_64exim-mon< 4.92-1.37.amzn1exim-mon-4.92-1.37.amzn1.x86_64.rpm
Amazon Linux1x86_64exim-mysql< 4.92-1.37.amzn1exim-mysql-4.92-1.37.amzn1.x86_64.rpm
Amazon Linux1x86_64exim< 4.92-1.37.amzn1exim-4.92-1.37.amzn1.x86_64.rpm

OS	Version	Architecture	Package	Version	Filename
Amazon Linux	1	i686	exim	< 4.92-1.37.amzn1	exim-4.92-1.37.amzn1.i686.rpm
Amazon Linux	1	i686	exim-pgsql	< 4.92-1.37.amzn1	exim-pgsql-4.92-1.37.amzn1.i686.rpm
Amazon Linux	1	i686	exim-mysql	< 4.92-1.37.amzn1	exim-mysql-4.92-1.37.amzn1.i686.rpm
Amazon Linux	1	i686	exim-debuginfo	< 4.92-1.37.amzn1	exim-debuginfo-4.92-1.37.amzn1.i686.rpm
Amazon Linux	1	i686	exim-greylist	< 4.92-1.37.amzn1	exim-greylist-4.92-1.37.amzn1.i686.rpm
Amazon Linux	1	i686	exim-mon	< 4.92-1.37.amzn1	exim-mon-4.92-1.37.amzn1.i686.rpm
Amazon Linux	1	x86_64	exim-greylist	< 4.92-1.37.amzn1	exim-greylist-4.92-1.37.amzn1.x86_64.rpm
Amazon Linux	1	x86_64	exim-mon	< 4.92-1.37.amzn1	exim-mon-4.92-1.37.amzn1.x86_64.rpm
Amazon Linux	1	x86_64	exim-mysql	< 4.92-1.37.amzn1	exim-mysql-4.92-1.37.amzn1.x86_64.rpm
Amazon Linux	1	x86_64	exim	< 4.92-1.37.amzn1	exim-4.92-1.37.amzn1.x86_64.rpm