Amazon Linux AMI update for emacs

1) OS Command Injection

EUVDB-ID: #VU69808

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-45939

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when processing name of a source-code file in lib-src/etags.c. A remote attacker can trick the victim to use the "ctags *" command and execute arbitrary OS commands on the target system in a situation where the current working directory has contents that depend on untrusted input.

Mitigation

Update the affected packages:

aarch64:
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-devel-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debugsource-28.2-3.amzn2023.0.3.aarch64
    emacs-28.2-3.amzn2023.0.3.aarch64
    emacs-nox-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-28.2-3.amzn2023.0.3.aarch64
    emacs-common-28.2-3.amzn2023.0.3.aarch64

noarch:
    emacs-filesystem-28.2-3.amzn2023.0.3.noarch
    emacs-terminal-28.2-3.amzn2023.0.3.noarch

src:
    emacs-28.2-3.amzn2023.0.3.src

x86_64:
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-devel-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-debugsource-28.2-3.amzn2023.0.3.x86_64
    emacs-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-common-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-28.2-3.amzn2023.0.3.x86_64
    emacs-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-28.2-3.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

emacs: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-122.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.

2) OS Command Injection

EUVDB-ID: #VU72573

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-48337

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when parsing name of a source-code file in lib-src/etags.c. A remote attacker can trick the victim use the "etags -u *" command on the directory with attacker controlled content and execute arbitrary OS commands on the target system.

Mitigation

Update the affected packages:

aarch64:
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-devel-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debugsource-28.2-3.amzn2023.0.3.aarch64
    emacs-28.2-3.amzn2023.0.3.aarch64
    emacs-nox-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-28.2-3.amzn2023.0.3.aarch64
    emacs-common-28.2-3.amzn2023.0.3.aarch64

noarch:
    emacs-filesystem-28.2-3.amzn2023.0.3.noarch
    emacs-terminal-28.2-3.amzn2023.0.3.noarch

src:
    emacs-28.2-3.amzn2023.0.3.src

x86_64:
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-devel-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-debugsource-28.2-3.amzn2023.0.3.x86_64
    emacs-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-common-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-28.2-3.amzn2023.0.3.x86_64
    emacs-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-28.2-3.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

emacs: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-122.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.

3) OS Command Injection

EUVDB-ID: #VU72574

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48338

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a malicious gem to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the ruby-find-library-file() function. A malicious Ruby source file can execute arbitrary OS commands on the target system.

Mitigation

Update the affected packages:

aarch64:
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-devel-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debugsource-28.2-3.amzn2023.0.3.aarch64
    emacs-28.2-3.amzn2023.0.3.aarch64
    emacs-nox-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-28.2-3.amzn2023.0.3.aarch64
    emacs-common-28.2-3.amzn2023.0.3.aarch64

noarch:
    emacs-filesystem-28.2-3.amzn2023.0.3.noarch
    emacs-terminal-28.2-3.amzn2023.0.3.noarch

src:
    emacs-28.2-3.amzn2023.0.3.src

x86_64:
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-devel-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-debugsource-28.2-3.amzn2023.0.3.x86_64
    emacs-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-common-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-28.2-3.amzn2023.0.3.x86_64
    emacs-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-28.2-3.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

emacs: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-122.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) OS Command Injection

EUVDB-ID: #VU72575

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-48339

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within the hfy-istext-command() function when parsing the "file" and "srcdir" parameters, if a file name or directory name contains shell metacharacter. A remote attacker can execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages:

aarch64:
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-devel-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.aarch64
    emacs-debugsource-28.2-3.amzn2023.0.3.aarch64
    emacs-28.2-3.amzn2023.0.3.aarch64
    emacs-nox-28.2-3.amzn2023.0.3.aarch64
    emacs-lucid-28.2-3.amzn2023.0.3.aarch64
    emacs-common-28.2-3.amzn2023.0.3.aarch64

noarch:
    emacs-filesystem-28.2-3.amzn2023.0.3.noarch
    emacs-terminal-28.2-3.amzn2023.0.3.noarch

src:
    emacs-28.2-3.amzn2023.0.3.src

x86_64:
    emacs-common-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-devel-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-debugsource-28.2-3.amzn2023.0.3.x86_64
    emacs-debuginfo-28.2-3.amzn2023.0.3.x86_64
    emacs-common-28.2-3.amzn2023.0.3.x86_64
    emacs-nox-28.2-3.amzn2023.0.3.x86_64
    emacs-28.2-3.amzn2023.0.3.x86_64
    emacs-lucid-28.2-3.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

emacs: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-122.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.

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2022-45939 CVE-2022-48337 CVE-2022-48338 CVE-2022-48339
CWE-ID	CWE-78
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Amazon Linux AMI Operating systems & Components / Operating system emacs Operating systems & Components / Operating system package or component
Vendor	Amazon Web Services