CVE-2026-45447 · cross-distro fix matrix

CVE-2026-45447: Frank Buss discovered that OpenSSL had a heap buffer over-read in ASN.1

Affects 10 Linux releases across 39 (distro × package) combinations. First disclosed: 2026-06-09.

Fix per ecosystem

Each block below is a distro release where CVE-2026-45447 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

openssl→ fixed in3.0.2-0ubuntu1.25USN-8414-1

sudo apt-get install --only-upgrade -y openssl

libssl-dev→ fixed in3.0.2-0ubuntu1.25USN-8414-1

sudo apt-get install --only-upgrade -y libssl-dev

libssl-doc→ fixed in3.0.2-0ubuntu1.25USN-8414-1

sudo apt-get install --only-upgrade -y libssl-doc

libssl3→ fixed in3.0.2-0ubuntu1.25USN-8414-1

sudo apt-get install --only-upgrade -y libssl3

Ubuntu noble

Source: Ubuntu USN

openssl→ fixed in3.0.13-0ubuntu3.11USN-8414-1
```
sudo apt-get install --only-upgrade -y openssl
```
libssl-dev→ fixed in3.0.13-0ubuntu3.11USN-8414-1
```
sudo apt-get install --only-upgrade -y libssl-dev
```
libssl-doc→ fixed in3.0.13-0ubuntu3.11USN-8414-1
```
sudo apt-get install --only-upgrade -y libssl-doc
```
libssl3t64→ fixed in3.0.13-0ubuntu3.11USN-8414-1
```
sudo apt-get install --only-upgrade -y libssl3t64
```

Ubuntu questing

Source: Ubuntu USN

openssl→ fixed in3.5.3-1ubuntu3.4USN-8414-1

sudo apt-get install --only-upgrade -y openssl

libssl-dev→ fixed in3.5.3-1ubuntu3.4USN-8414-1

sudo apt-get install --only-upgrade -y libssl-dev

libssl-doc→ fixed in3.5.3-1ubuntu3.4USN-8414-1

sudo apt-get install --only-upgrade -y libssl-doc

libssl3t64→ fixed in3.5.3-1ubuntu3.4USN-8414-1

sudo apt-get install --only-upgrade -y libssl3t64

openssl-provider-legacy→ fixed in3.5.3-1ubuntu3.4USN-8414-1

sudo apt-get install --only-upgrade -y openssl-provider-legacy

Ubuntu resolute

Source: Ubuntu USN

openssl→ fixed in3.5.5-1ubuntu3.2USN-8414-1

sudo apt-get install --only-upgrade -y openssl

libssl-dev→ fixed in3.5.5-1ubuntu3.2USN-8414-1

sudo apt-get install --only-upgrade -y libssl-dev

libssl-doc→ fixed in3.5.5-1ubuntu3.2USN-8414-1

sudo apt-get install --only-upgrade -y libssl-doc

libssl3t64→ fixed in3.5.5-1ubuntu3.2USN-8414-1

sudo apt-get install --only-upgrade -y libssl3t64

openssl-provider-legacy→ fixed in3.5.5-1ubuntu3.2USN-8414-1

sudo apt-get install --only-upgrade -y openssl-provider-legacy

Ubuntu bionic

Source: Ubuntu USN

openssl→ fixed in1.1.1-1ubuntu2.1~18.04.23+esm9USN-8414-2
```
sudo apt-get install --only-upgrade -y openssl
```
openssl1.0→ fixed in1.0.2n-1ubuntu5.13+esm5USN-8414-2
```
sudo apt-get install --only-upgrade -y openssl1.0
```
libssl-dev→ fixed in1.1.1-1ubuntu2.1~18.04.23+esm9USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-dev
```
libssl-doc→ fixed in1.1.1-1ubuntu2.1~18.04.23+esm9USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-doc
```
libssl1.0-dev→ fixed in1.0.2n-1ubuntu5.13+esm5USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl1.0-dev
```
libssl1.0.0→ fixed in1.0.2n-1ubuntu5.13+esm5USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl1.0.0
```
libssl1.1→ fixed in1.1.1-1ubuntu2.1~18.04.23+esm9USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl1.1
```

Ubuntu focal

Source: Ubuntu USN

openssl→ fixed in1.1.1f-1ubuntu2.24+esm4USN-8414-2
```
sudo apt-get install --only-upgrade -y openssl
```
libssl-dev→ fixed in1.1.1f-1ubuntu2.24+esm4USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-dev
```
libssl-doc→ fixed in1.1.1f-1ubuntu2.24+esm4USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-doc
```
libssl1.1→ fixed in1.1.1f-1ubuntu2.24+esm4USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl1.1
```

Ubuntu trusty

Source: Ubuntu USN

openssl→ fixed in1.0.1f-1ubuntu2.27+esm14USN-8414-2
```
sudo apt-get install --only-upgrade -y openssl
```
libssl-dev→ fixed in1.0.1f-1ubuntu2.27+esm14USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-dev
```
libssl-doc→ fixed in1.0.1f-1ubuntu2.27+esm14USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-doc
```
libssl1.0.0→ fixed in1.0.1f-1ubuntu2.27+esm14USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl1.0.0
```

Ubuntu xenial

Source: Ubuntu USN

openssl→ fixed in1.0.2g-1ubuntu4.20+esm16USN-8414-2
```
sudo apt-get install --only-upgrade -y openssl
```
libssl-dev→ fixed in1.0.2g-1ubuntu4.20+esm16USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-dev
```
libssl-doc→ fixed in1.0.2g-1ubuntu4.20+esm16USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl-doc
```
libssl1.0.0→ fixed in1.0.2g-1ubuntu4.20+esm16USN-8414-2
```
sudo apt-get install --only-upgrade -y libssl1.0.0
```

Debian bookworm

Source: Debian Security Tracker

openssl→ fixed in3.0.20-1~deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Debian trixie

Source: Debian Security Tracker

openssl→ fixed in3.5.6-1~deb13u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Are YOU affected by CVE-2026-45447?

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