vulnwire
5.9med

CVE-2016-12521 exploit

The apt package in Debian jessie before 1.0.9.8.4, in Debian unstable before 1.4~beta2, in Ubuntu 14.04 LTS before 1.0.1ubuntu2.17, in Ubun…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.9
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
7.2%
percentile 94%
Public exploits
1
Exploit-DB

The apt package in Debian jessie before 1.0.9.8.4, in Debian unstable before 1.4~beta2, in Ubuntu 14.04 LTS before 1.0.1ubuntu2.17, in Ubuntu 16.04 LTS before 1.2.15ubuntu0.2, and in Ubuntu 16.10 before 1.3.2ubuntu0.1 allows man-in-the-middle attackers to bypass a repository-signing protection mechanism by leveraging improper error handling when validating InRelease file signatures.

Exploit prediction (EPSS)

7.25% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.

Exploits and detections

  • EDB-40916 APT - Repository Signing Bypass via Memory Allocation Failure · remote · 2016-12-14

CVSS scores

Assigned byVersionScoreVector
NVD3.15.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

  • debian.org /security/2016/dsa-3733 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • ubuntu.com /usn/USN-3156-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • packetstormsecurity.com /files/140145/apt-Repository-Signing-Bypass.html · x_refsource_MISC, x_transferred
  • exploit-db.com /exploits/40916/ · exploit, x_refsource_EXPLOIT-DB, x_transferred
  • bugs.launchpad.net /ubuntu/+source/apt/+bug/1647467 · x_refsource_CONFIRM, x_transferred
  • bugs.chromium.org /p/project-zero/issues/detail?id=1020 · x_refsource_MISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.