VulnerabilityModified
CVE-2021-3998
The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.
HIGH 7.5EPSS 1.76%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.76% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-252
- Affected
- gnu/glibc · netapp/ontap select deploy administration utility · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h410s firmware · netapp/h410c firmware
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-3998Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2024633Issue Tracking, Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-3998Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221020-0003/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=28770Issue Tracking, Patch, Third Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb
- https://www.openwall.com/lists/oss-security/2022/01/24/4Mailing List, Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3998Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2024633Issue Tracking, Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-3998Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221020-0003/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=28770Issue Tracking, Patch, Third Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=84d2d0fe20bdf94feed82b21b4d7d136db471f03
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ee8d5e33adb284601c00c94687bc907e10aec9bb
- https://www.openwall.com/lists/oss-security/2022/01/24/4Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.