CVE-2022-0778 · cross-distro fix matrix

CVE-2022-0778: The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a

Affects 8 Linux releases across 28 (distro × package) combinations.

Elevated exploitation risk

FIRST EPSS puts CVE-2022-0778's probability of exploitation in the next 30 days at 71% (99th percentile of all CVEs)— well above the noise floor. Prioritize it.

EPSS:71% · 30-day exploit probability99th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2022-0778 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openssl→ fixed in1.1.1k-1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Debian bookworm

Source: Debian Security Tracker

openssl→ fixed in1.1.1n-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Debian trixie

Source: Debian Security Tracker

openssl→ fixed in1.1.1n-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Alpine v3.20

Source: Alpine secdb

libretls→ fixed in3.5.1-r0

apk update && apk add --upgrade libretls

openssl→ fixed in3.0.2-r0
```
apk update && apk add --upgrade openssl
```

libressl→ fixed in3.4.3-r0

apk update && apk add --upgrade libressl

lighthouse→ fixed in2.2.0-r0

apk update && apk add --upgrade lighthouse

openjdk11→ fixed in11.0.15_p10-r0

apk update && apk add --upgrade openjdk11

Alpine v3.21

Source: Alpine secdb

libretls→ fixed in3.5.1-r0

apk update && apk add --upgrade libretls

openssl→ fixed in3.0.2-r0
```
apk update && apk add --upgrade openssl
```

libressl→ fixed in3.4.3-r0

apk update && apk add --upgrade libressl

lighthouse→ fixed in2.2.0-r0

apk update && apk add --upgrade lighthouse

openjdk11→ fixed in11.0.15_p10-r0

apk update && apk add --upgrade openjdk11

Alpine edge

Source: Alpine secdb

openssl→ fixed in3.0.2-r0
```
apk update && apk add --upgrade openssl
```

libressl→ fixed in3.4.3-r0

apk update && apk add --upgrade libressl

libretls→ fixed in3.5.1-r0

apk update && apk add --upgrade libretls

lighthouse→ fixed in2.2.0-r0

apk update && apk add --upgrade lighthouse

openjdk11→ fixed in11.0.15_p10-r0

apk update && apk add --upgrade openjdk11

Alpine v3.18

Source: Alpine secdb

libretls→ fixed in3.5.1-r0

apk update && apk add --upgrade libretls

openssl→ fixed in3.0.2-r0
```
apk update && apk add --upgrade openssl
```

libressl→ fixed in3.4.3-r0

apk update && apk add --upgrade libressl

openjdk11→ fixed in11.0.15_p10-r0

apk update && apk add --upgrade openjdk11

openssl1.1-compat→ fixed in1.1.1n-r0

apk update && apk add --upgrade openssl1.1-compat

Alpine v3.19

Source: Alpine secdb

libretls→ fixed in3.5.1-r0

apk update && apk add --upgrade libretls

openssl→ fixed in3.0.2-r0
```
apk update && apk add --upgrade openssl
```

libressl→ fixed in3.4.3-r0

apk update && apk add --upgrade libressl

lighthouse→ fixed in2.2.0-r0

apk update && apk add --upgrade lighthouse

openjdk11→ fixed in11.0.15_p10-r0

apk update && apk add --upgrade openjdk11

Are YOU affected by CVE-2022-0778?

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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