Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-96675: alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the multi PCM plugin that fails to validate sparse binding indices before array access. Attackers can supply a malicious ALSA configuration file with sparse bindings to trigger an out-of-bounds array read and assertion failure, causing the application to abort. CVE-2026-90781: alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | alsa-lib | 0:1.1.4.1-2.amzn2.0.2 |
| Amazon Linux · 2 | alsa-lib-debuginfo | 0:1.1.4.1-2.amzn2.0.2 |
| Amazon Linux · 2 | alsa-lib-devel | 0:1.1.4.1-2.amzn2.0.2 |
Vulnerabilities 2
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Medium 4.4CVE-2026-90781 Public exploit
alsa-lib through 1.2.16.1 Off-by-One Stack Buffer Overflow in __snd_ctl_ascii_elem_id_parse()
alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier…
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Low 3.3
alsa-lib through 1.2.16.1 Denial of Service via pcm_multi
alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the multi PCM plugin that fails to validate sparse binding indices before array access. Attackers can supply a malicious ALSA configuration file with sparse bindings to trigger an out-of-…