What’s Vulnerable › Vulnerabilities

CVE-2019-9192

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-02-26 · updated 2026-06-17
• Weakness: CWE-674

Description

In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(|)(\\1\\1)*' in grep, a different issue than CVE-2018-20796. NOTE: the software maintainer disputes that this is a vulnerability because the behavior occurs only with a crafted pattern

Affected products

• GNU C Library (glibc): through 2.29

References

• https://sourceware.org/bugzilla/show_bug.cgi?id=24269
• https://support.f5.com/csp/article/K26346590?utm_source=f5support&amp%3Butm_medium=RSS
• https://sourceware.org/bugzilla/show_bug.cgi?id=24269
• https://support.f5.com/csp/article/K26346590?utm_source=f5support&amp%3Butm_medium=RSS

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