What’s Vulnerable › Vulnerabilities

CVE-2017-12133

• Severity: medium (CVSS 5.9 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: none known
• Published: 2017-09-07 · updated 2026-06-17
• Weakness: CWE-416

Description

Use-after-free vulnerability in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) before 2.26 allows remote attackers to have unspecified impact via vectors related to error path.

Affected products

• GNU C Library (glibc): through 2.25

References

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYZL6PAKI73XYRJYL5VLDGA4FFGWMB7A/
• https://sourceware.org/bugzilla/show_bug.cgi?id=21115
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=d42eed4a044e5e10dfb885cf9891c2518a72a491
• https://usn.ubuntu.com/4416-1/
• https://www.securityfocus.com/bid/100679
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYZL6PAKI73XYRJYL5VLDGA4FFGWMB7A/
• https://sourceware.org/bugzilla/show_bug.cgi?id=21115
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=d42eed4a044e5e10dfb885cf9891c2518a72a491
• https://usn.ubuntu.com/4416-1/
• https://www.securityfocus.com/bid/100679

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