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CVE-2018-0739 · cross-distro fix matrix

CVE-2018-0739: Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so

Affects 3 Linux releases across 6 (distro × package) combinations.

Elevated exploitation risk

FIRST EPSS puts CVE-2018-0739's probability of exploitation in the next 30 days at 19% (97th percentile of all CVEs)— well above the noise floor. Prioritize it.

EPSS:19% · 30-day exploit probability97th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2018-0739 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • libtomcrypt→ fixed in1.18.2-1urgency: low
    sudo apt-get install --only-upgrade -y libtomcrypt
  • openssl→ fixed in1.1.0h-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y openssl

Debian bookworm

Source: Debian Security Tracker

  • libtomcrypt→ fixed in1.18.2-1urgency: low
    sudo apt-get install --only-upgrade -y libtomcrypt
  • openssl→ fixed in1.1.0h-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y openssl

Debian trixie

Source: Debian Security Tracker

  • libtomcrypt→ fixed in1.18.2-1urgency: low
    sudo apt-get install --only-upgrade -y libtomcrypt
  • openssl→ fixed in1.1.0h-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y openssl
Are YOU affected by CVE-2018-0739?

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
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