ALAS2-2023-2277

Amazon Linux 2 Security Advisory: ALAS-2023-2277
Advisory Release Date: 2023-09-27 22:48 Pacific
Advisory Updated Date: 2023-10-05 22:04 Pacific
Severity: Medium
Issue Overview:

A Use After Free vulnerability in function new_Token in asm/preproc.c in nasm 2.14.02 allows attackers to cause a denial of service via crafted nasm command. (CVE-2020-18780)

A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file. (CVE-2020-21528)

NASM v2.16 was discovered to contain a segmentation violation in the component ieee_write_file at /output/outieee.c. (CVE-2022-46457)


Affected Packages:

nasm


Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


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

New Packages:
aarch64:
    nasm-2.15.03-3.amzn2.0.3.aarch64
    nasm-rdoff-2.15.03-3.amzn2.0.3.aarch64
    nasm-debuginfo-2.15.03-3.amzn2.0.3.aarch64

i686:
    nasm-2.15.03-3.amzn2.0.3.i686
    nasm-rdoff-2.15.03-3.amzn2.0.3.i686
    nasm-debuginfo-2.15.03-3.amzn2.0.3.i686

noarch:
    nasm-doc-2.15.03-3.amzn2.0.3.noarch

src:
    nasm-2.15.03-3.amzn2.0.3.src

x86_64:
    nasm-2.15.03-3.amzn2.0.3.x86_64
    nasm-rdoff-2.15.03-3.amzn2.0.3.x86_64
    nasm-debuginfo-2.15.03-3.amzn2.0.3.x86_64

Additional References

Red Hat: CVE-2020-18780, CVE-2020-21528, CVE-2022-46457

Mitre: CVE-2020-18780, CVE-2020-21528, CVE-2022-46457