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Out-of-bounds Write Affecting libecap package, versions <0:1.0.1-2.module+el8.4.0+404+316a0dc5

Severity

 Recommended
high

Based on Rocky Linux security rating

    Threat Intelligence

    EPSS
    12.49% (96th percentile)

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  • Snyk ID SNYK-ROCKY8-LIBECAP-3223350
  • published 5 Jan 2023
  • disclosed 11 Jul 2019
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Introduced: 11 Jul 2019

CVE-2019-12525 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Rocky-Linux:8 libecap to version 0:1.0.1-2.module+el8.4.0+404+316a0dc5 or higher.
This issue was patched in RLSA-2020:2041.

NVD Description

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

An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.

References

CVSS Scores

version 3.1
Expand this section

NVD

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