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Use After Free Affecting glibc package, versions <2.30-3

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.11% (46th percentile)

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  • Snyk ID SNYK-DEBIAN11-GLIBC-559485
  • published 7 Mar 2020
  • disclosed 30 Apr 2020
Report a new vulnerability Found a mistake?

Introduced: 7 Mar 2020

CVE-2020-1752 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Debian:11 glibc to version 2.30-3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.

References

CVSS Scores

version 3.1
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NVD

Recommended
7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

7 high
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Red Hat

7 high