CVE-2021-3998

Summary

A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.

Affected Software

Weaknesses

• CWE-125: CWE-125 - Out-of-bounds Read

ADP Enrichment

CVE Program Container

Additional References

• https://www.openwall.com/lists/oss-security/2022/01/24/4
• https://sourceware.org/bugzilla/show_bug.cgi?id=28770
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03
• https://bugzilla.redhat.com/show_bug.cgi?id=2024633
• https://access.redhat.com/security/cve/CVE-2021-3998
• https://security-tracker.debian.org/tracker/CVE-2021-3998
• https://security.netapp.com/advisory/ntap-20221020-0003/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://www.openwall.com/lists/oss-security/2022/01/24/4
• https://sourceware.org/bugzilla/show_bug.cgi?id=28770
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03
• https://bugzilla.redhat.com/show_bug.cgi?id=2024633
• https://access.redhat.com/security/cve/CVE-2021-3998
• https://security-tracker.debian.org/tracker/CVE-2021-3998
• https://security.netapp.com/advisory/ntap-20221020-0003/

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