Use After Free Affecting glibc package, versions <2.24-15
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-GLIBC-18610899
- published11 Aug 2026
- disclosed7 Sept 2017
Introduced: 7 Sep 2017
CVE-2017-12133 (opens in a new tab)How to fix?
Upgrade Echo:latest glibc to version 2.24-15 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.
References
- https://advisory.echohq.com/cve/CVE-2017-12133
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYZL6PAKI73XYRJYL5VLDGA4FFGWMB7A/
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d42eed4a044e5e10dfb885cf9891c2518a72a491
- 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