Risk | Critical |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2023-42116 CVE-2023-42117 |
CWE-ID | CWE-121 CWE-119 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Amazon Linux AMI Operating systems & Components / Operating system exim Operating systems & Components / Operating system package or component |
Vendor | Amazon Web Services |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU81253
Risk: Critical
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-42116
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when handling NTLM challenge requests. A remote unauthenticated attacker can send specially crafted data to the server, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Update the affected packages:
i686:Vulnerable software versions
exim-pgsql-4.92-1.39.amzn1.i686
exim-debuginfo-4.92-1.39.amzn1.i686
exim-mon-4.92-1.39.amzn1.i686
exim-mysql-4.92-1.39.amzn1.i686
exim-greylist-4.92-1.39.amzn1.i686
exim-4.92-1.39.amzn1.i686
src:
exim-4.92-1.39.amzn1.src
x86_64:
exim-4.92-1.39.amzn1.x86_64
exim-mon-4.92-1.39.amzn1.x86_64
exim-mysql-4.92-1.39.amzn1.x86_64
exim-pgsql-4.92-1.39.amzn1.x86_64
exim-debuginfo-4.92-1.39.amzn1.x86_64
exim-greylist-4.92-1.39.amzn1.x86_64
Amazon Linux AMI: All versions
exim: before 4.92-1.39
External linkshttp://alas.aws.amazon.com/ALAS-2023-1860.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU81254
Risk: Critical
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-42117
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the smtp service. A remote attacker can send specially crafted data to the server, trigger memory corruption and execute arbitrary code on the target system.
MitigationUpdate the affected packages:
i686:Vulnerable software versions
exim-pgsql-4.92-1.39.amzn1.i686
exim-debuginfo-4.92-1.39.amzn1.i686
exim-mon-4.92-1.39.amzn1.i686
exim-mysql-4.92-1.39.amzn1.i686
exim-greylist-4.92-1.39.amzn1.i686
exim-4.92-1.39.amzn1.i686
src:
exim-4.92-1.39.amzn1.src
x86_64:
exim-4.92-1.39.amzn1.x86_64
exim-mon-4.92-1.39.amzn1.x86_64
exim-mysql-4.92-1.39.amzn1.x86_64
exim-pgsql-4.92-1.39.amzn1.x86_64
exim-debuginfo-4.92-1.39.amzn1.x86_64
exim-greylist-4.92-1.39.amzn1.x86_64
Amazon Linux AMI: All versions
exim: before 4.92-1.39
External linkshttp://alas.aws.amazon.com/ALAS-2023-1860.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.