Use After Free in GNU Glibc
CVE-2017-12133
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceware.org/bugzilla/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/100679 (vdb-entry)
- sourceware.org/git/gitweb.cgi
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- usn.ubuntu.com/4416-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2017-12133?
- CVE-2017-12133 is a medium-severity vulnerability in GNU Glibc, classified under Use After Free. CVSS score: 5.9/10. Published 2017-09-07.
- How severe is CVE-2017-12133?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2017-12133 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.