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Out-of-bounds Write Affecting squid:4/libecap package, versions <0:1.0.1-2.module_el8.6.0+2741+01592ae8

Severity

 Recommended
0.0
high
0
10

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    2.33% (91st percentile)

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  • Snyk ID SNYK-ALMALINUX8-SQUID-5619504
  • published 28 May 2023
  • disclosed 2 Sep 2019
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Introduced: 2 Sep 2019

CVE-2019-12527 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:8 squid:4/libecap to version 0:1.0.1-2.module_el8.6.0+2741+01592ae8 or higher.
This issue was patched in ALSA-2019:2593.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid:4/libecap package and not the squid:4/libecap package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.

References

CVSS Scores

version 3.1
Expand this section

NVD

8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High