Security readout for executives and security teams
CVE-2018-20796 is a glibc regular-expression processing flaw. A specially crafted regular expression can drive uncontrolled recursion, shown through grep. The clearest business risk is service disruption where systems process untrusted or user-supplied regex patterns. Exposure is most likely on Linux or appliance platforms using glibc/libc6 through 2.29, especially applications that allow users, jobs, or automation to submit regex patterns to glibc-backed tools or services. Prioritize normal vulnerability management unless exposed services accept arbitrary regex input. Escalate for shared infrastructure, security tooling, or appliances where a crash could affect availability or operations. Mitigation focus: Inventory systems and appliances using glibc or libc6 through 2.29.; Check OS, NetApp, F5, and other vendor guidance for fixed packages.; Apply distributor-supported glibc/libc6 updates where available..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2018-20796 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://security.netapp.com/advisory/ntap-20190315-0002/CVE reference · x_refsource_CONFIRM
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.htmlCVE reference · x_refsource_MISC
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141CVE reference · x_refsource_MISC
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medium=RSSCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.