CVE-2015-1799 · cross-distro fix matrix

CVE-2015-1799: The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the

Affects 1 Linux release across 1 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2015-1799 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

ntp→ fixed in1:4.2.6.p5+dfsg-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ntp
```

Are YOU affected by CVE-2015-1799?

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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