CVE-2017-12133 Use after free in n/a
Remote attackers can exploit a use-after-free flaw in glibc's UDP RPC client to potentially execute code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-12133?
CVE-2017-12133 is a medium-severity use after free vulnerability in Gnu Glibc, published on 7 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-416
Which versions are affected by CVE-2017-12133?
It affects 1 product.
Linux distribution packages (12)
glibc SUSE:Linux Enterprise Desktop 12 SP2 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Server 11 SP4 | All versions | 2.11.3-17.110.9.2 |
glibc SUSE:Linux Enterprise Server 12 SP2 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Server 12 SP3 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 2.11.3-17.110.9.2 |
glibc SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Software Development Kit 11 SP4 | All versions | 2.11.3-17.110.9.2 |
glibc SUSE:Linux Enterprise Software Development Kit 12 SP2 | All versions | 2.22-62.10.1 |
glibc SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 2.22-62.10.1 |
Products include Gnu Glibc.
How do I fix CVE-2017-12133?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-12133 being exploited?
There is no known exploitation of CVE-2017-12133 in the wild and no public exploit code.
Other vulnerabilities in Gnu Glibc
Sources
Also known as DEBIAN-CVE-2017-12133, GHSA-v9xh-wvfv-7mhr, SUSE-SU-2018:0655-1, SUSE-SU-2018:0874-1, UBUNTU-CVE-2017-12133.