Vulnerability Monitor

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CVE-2019-12526

An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.

Published

2019-11-26T17:15:10.843

Last Modified

2024-11-21T04:23:02.443

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application squid-cache squid ≤ 3.5.28 Yes
Application squid-cache squid ≤ 4.8 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 19.04 Yes
Operating System canonical ubuntu_linux 19.10 Yes
Operating System fedoraproject fedora 30 Yes
Operating System fedoraproject fedora 31 Yes
Operating System opensuse leap 15.0 Yes
Operating System debian debian_linux 8.0 Yes
Operating System debian debian_linux 9.0 Yes
Operating System debian debian_linux 10.0 Yes
References