CVE-2017-12133

Published: Sep 7, 2017Modified: May 13, 2026

5.9

Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitability: 2.2 / Impact: 3.6

Source: NVD

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 (1)

Products: Gnu: Glibc

Gnu

1 product

Glibc

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Gnu Glibc	Up to 2.25

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (10)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYZL6PAKI73XYRJYL5VLDGA4FFGWMB7A/

Source: cve@mitre.org

https://sourceware.org/bugzilla/show_bug.cgi?id=21115

Source: cve@mitre.org

Issue TrackingThird Party Advisory

https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=d42eed4a044e5e10dfb885cf9891c2518a72a491

Source: cve@mitre.org

https://usn.ubuntu.com/4416-1/

Source: cve@mitre.org

https://www.securityfocus.com/bid/100679

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYZL6PAKI73XYRJYL5VLDGA4FFGWMB7A/