CVE-2021-45429 · cross-distro fix matrix

CVE-2021-45429: A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara/libyara.c, which could cause a Denial of Service.

Affects 6 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-45429 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

yara→ fixed in4.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y yara
```

Debian trixie

Source: Debian Security Tracker

yara→ fixed in4.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y yara
```

Alpine v3.20

Source: Alpine secdb

yara→ fixed in4.2.0-r0
```
apk update && apk add --upgrade yara
```

Alpine v3.21

Source: Alpine secdb

yara→ fixed in4.2.0-r0
```
apk update && apk add --upgrade yara
```

Alpine edge

Source: Alpine secdb

yara→ fixed in4.2.0-r0
```
apk update && apk add --upgrade yara
```

Alpine v3.19

Source: Alpine secdb

yara→ fixed in4.2.0-r0
```
apk update && apk add --upgrade yara
```

Are YOU affected by CVE-2021-45429?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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