Amazon Linux AMI update for gcc



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-4039
CWE-ID CWE-254
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

gcc
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU81045

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-4039

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the GCC's stack smashing protection does not detect or defend against overflows of dynamically-sized local variables on AArch64 targets. A remote attacker can bypass expected security restrictions and successfully exploit buffer overflow vulnerabilities.

Mitigation

Update the affected packages:

aarch64:
    gcc-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libstdc++-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libubsan-11.4.1-2.amzn2023.0.2.aarch64
    gcc-gfortran-11.4.1-2.amzn2023.0.2.aarch64
    liblsan-static-11.4.1-2.amzn2023.0.2.aarch64
    libubsan-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    gcc-c++-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libgomp-11.4.1-2.amzn2023.0.2.aarch64
    gcc-11.4.1-2.amzn2023.0.2.aarch64
    cpp-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libstdc++-11.4.1-2.amzn2023.0.2.aarch64
    libatomic-static-11.4.1-2.amzn2023.0.2.aarch64
    libgfortran-11.4.1-2.amzn2023.0.2.aarch64
    libgccjit-11.4.1-2.amzn2023.0.2.aarch64
    libstdc++-devel-11.4.1-2.amzn2023.0.2.aarch64
    libtsan-11.4.1-2.amzn2023.0.2.aarch64
    gcc-gdb-plugin-11.4.1-2.amzn2023.0.2.aarch64
    libasan-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libstdc++-static-11.4.1-2.amzn2023.0.2.aarch64
    gcc-plugin-devel-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libasan-static-11.4.1-2.amzn2023.0.2.aarch64
    libubsan-static-11.4.1-2.amzn2023.0.2.aarch64
    liblsan-11.4.1-2.amzn2023.0.2.aarch64
    libgcc-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libgfortran-static-11.4.1-2.amzn2023.0.2.aarch64
    libitm-static-11.4.1-2.amzn2023.0.2.aarch64
    libtsan-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libasan-11.4.1-2.amzn2023.0.2.aarch64
    libitm-devel-11.4.1-2.amzn2023.0.2.aarch64
    libitm-11.4.1-2.amzn2023.0.2.aarch64
    gcc-debugsource-11.4.1-2.amzn2023.0.2.aarch64
    libgfortran-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libatomic-11.4.1-2.amzn2023.0.2.aarch64
    cpp-11.4.1-2.amzn2023.0.2.aarch64
    gcc-gfortran-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    gcc-gdb-plugin-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libgccjit-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libatomic-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libgomp-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libgccjit-devel-11.4.1-2.amzn2023.0.2.aarch64
    liblsan-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    gcc-c++-11.4.1-2.amzn2023.0.2.aarch64
    libtsan-static-11.4.1-2.amzn2023.0.2.aarch64
    gcc-plugin-devel-11.4.1-2.amzn2023.0.2.aarch64
    libgcc-11.4.1-2.amzn2023.0.2.aarch64
    libitm-debuginfo-11.4.1-2.amzn2023.0.2.aarch64
    libstdc++-docs-11.4.1-2.amzn2023.0.2.aarch64

src:
    gcc-11.4.1-2.amzn2023.0.2.src

x86_64:
    gcc-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libgfortran-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    gcc-gfortran-11.4.1-2.amzn2023.0.2.x86_64
    libstdc++-static-11.4.1-2.amzn2023.0.2.x86_64
    libasan-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    liblsan-static-11.4.1-2.amzn2023.0.2.x86_64
    libgccjit-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    gcc-c++-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    gcc-11.4.1-2.amzn2023.0.2.x86_64
    libgomp-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libstdc++-devel-11.4.1-2.amzn2023.0.2.x86_64
    gcc-c++-11.4.1-2.amzn2023.0.2.x86_64
    cpp-11.4.1-2.amzn2023.0.2.x86_64
    libtsan-static-11.4.1-2.amzn2023.0.2.x86_64
    liblsan-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    gcc-gfortran-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libitm-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libgccjit-11.4.1-2.amzn2023.0.2.x86_64
    libstdc++-11.4.1-2.amzn2023.0.2.x86_64
    libtsan-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    cpp-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libtsan-11.4.1-2.amzn2023.0.2.x86_64
    gcc-gdb-plugin-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libstdc++-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libasan-11.4.1-2.amzn2023.0.2.x86_64
    libasan-static-11.4.1-2.amzn2023.0.2.x86_64
    libgfortran-11.4.1-2.amzn2023.0.2.x86_64
    gcc-plugin-devel-11.4.1-2.amzn2023.0.2.x86_64
    libubsan-static-11.4.1-2.amzn2023.0.2.x86_64
    libgccjit-devel-11.4.1-2.amzn2023.0.2.x86_64
    gcc-offload-nvptx-11.4.1-2.amzn2023.0.2.x86_64
    libgfortran-static-11.4.1-2.amzn2023.0.2.x86_64
    libubsan-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    gcc-offload-nvptx-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    gcc-debugsource-11.4.1-2.amzn2023.0.2.x86_64
    libstdc++-docs-11.4.1-2.amzn2023.0.2.x86_64
    libquadmath-static-11.4.1-2.amzn2023.0.2.x86_64
    libquadmath-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    gcc-plugin-devel-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libgomp-11.4.1-2.amzn2023.0.2.x86_64
    liblsan-11.4.1-2.amzn2023.0.2.x86_64
    libubsan-11.4.1-2.amzn2023.0.2.x86_64
    libgcc-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libquadmath-11.4.1-2.amzn2023.0.2.x86_64
    gcc-gdb-plugin-11.4.1-2.amzn2023.0.2.x86_64
    libitm-static-11.4.1-2.amzn2023.0.2.x86_64
    libgcc-11.4.1-2.amzn2023.0.2.x86_64
    libitm-11.4.1-2.amzn2023.0.2.x86_64
    libatomic-static-11.4.1-2.amzn2023.0.2.x86_64
    libgomp-offload-nvptx-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libatomic-debuginfo-11.4.1-2.amzn2023.0.2.x86_64
    libgomp-offload-nvptx-11.4.1-2.amzn2023.0.2.x86_64
    libatomic-11.4.1-2.amzn2023.0.2.x86_64
    libquadmath-devel-11.4.1-2.amzn2023.0.2.x86_64
    libitm-devel-11.4.1-2.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

gcc: All versions

CPE2.3 External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-342.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.



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