CVE-2021-3826 · cross-distro fix matrix

CVE-2021-3826: Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

Affects 2 Linux releases across 4 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-3826 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

binutils→ fixed in2.37.50.20220121-1urgency: unimportant
```
sudo apt-get install --only-upgrade -y binutils
```
libiberty→ fixed in20220713-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libiberty
```

Debian trixie

Source: Debian Security Tracker

binutils→ fixed in2.37.50.20220121-1urgency: unimportant
```
sudo apt-get install --only-upgrade -y binutils
```
libiberty→ fixed in20220713-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libiberty
```

Are YOU affected by CVE-2021-3826?

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

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