CVE-2021-3999
CVE-2021-3999: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.4
High [CVE-2021-3999] flaw was found in glibc
CVE-2021-3999Source published Source updated
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system. This issue was rated as having Moderate impact because of the prerequisites required for successful exploitation. To the best of our knowledge, there is no actual setuid exposure to the vulnerable getcwd() usage pattern. Red Hat severity: Moderate — CVSS 7.4 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-193. Affected Red Hat products: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Will…
- Affected products in this advisory
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat package: glibc
1 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- glibc-0:2.28-164.el8_5.3
- RHSA-2022:0896
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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