CVE-2018-0491 · cross-distro fix matrix

CVE-2018-0491: A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-0491 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

tor→ fixed in0.3.2.10-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tor
```

Debian bookworm

Source: Debian Security Tracker

tor→ fixed in0.3.2.10-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tor
```

Debian trixie

Source: Debian Security Tracker

tor→ fixed in0.3.2.10-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tor
```

Alpine v3.20

Source: Alpine secdb

tor→ fixed in0.3.2.10-r0
```
apk update && apk add --upgrade tor
```

Alpine v3.21

Source: Alpine secdb

tor→ fixed in0.3.2.10-r0
```
apk update && apk add --upgrade tor
```

Alpine edge

Source: Alpine secdb

tor→ fixed in0.3.2.10-r0
```
apk update && apk add --upgrade tor
```

Alpine v3.18

Source: Alpine secdb

tor→ fixed in0.3.2.10-r0
```
apk update && apk add --upgrade tor
```

Alpine v3.19

Source: Alpine secdb

tor→ fixed in0.3.2.10-r0
```
apk update && apk add --upgrade tor
```

Are YOU affected by CVE-2018-0491?

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.

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