CVE-2017-15671
CVE-2017-15671 is a medium-severity vulnerability in Gnu Glibc with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-772.
Key facts
- Severity: Medium (CVSS 3.x base score 5.9)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-772
- Affected product: Gnu Glibc
- Published:
- Last modified:
Description
The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27, when invoked with GLOB_TILDE, could skip freeing allocated memory when processing the ~ operator with a long user name, potentially leading to a denial of service (memory leak).
Frequently asked questions
- What is CVE-2017-15671?
- The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27, when invoked with GLOB_TILDE, could skip freeing allocated memory when processing the ~ operator with a long user name, potentially leading to a denial of service (memory leak).
- How severe is CVE-2017-15671?
- CVE-2017-15671 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2017-15671 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-15671?
- CVE-2017-15671 affects Gnu Glibc. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-15671?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2017-15671 published?
- CVE-2017-15671 was published on 2017-10-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
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