CVE-2020-10029 Integer overflow in n/a

Medium 5.5 Published Updated

An attacker can trigger a stack buffer overflow in glibc via crafted long double inputs, potentially leading to code execution or denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2020-10029?

CVE-2020-10029 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 4 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.

Weakness: CWE-787

Which versions are affected by CVE-2020-10029?

It affects 11 products.

Linux distribution packages (15)
glibc SUSE:Enterprise Storage 5All versions2.22-113.4
glibc SUSE:HPE Helion OpenStack 8All versions2.22-113.4
glibc SUSE:Linux Enterprise Module for Basesystem 15 SP1All versions2.26-13.39.1
glibc SUSE:Linux Enterprise Module for Development Tools 15 SP1All versions2.26-13.39.1
glibc SUSE:Linux Enterprise Server 12 SP2-BCLAll versions2.22-113.4
glibc SUSE:Linux Enterprise Server 12 SP2-LTSSAll versions2.22-113.4
glibc SUSE:Linux Enterprise Server 12 SP3-BCLAll versions2.22-113.4
glibc SUSE:Linux Enterprise Server 12 SP3-LTSSAll versions2.22-113.4
glibc SUSE:Linux Enterprise Server for SAP Applications 12 SP2All versions2.22-113.4
glibc SUSE:Linux Enterprise Server for SAP Applications 12 SP3All versions2.22-113.4
glibc SUSE:OpenStack Cloud 7All versions2.22-113.4
glibc SUSE:OpenStack Cloud 8All versions2.22-113.4
glibc SUSE:OpenStack Cloud Crowbar 8All versions2.22-113.4
glibc openSUSE:Leap 15.1All versions2.26-lp151.19.3.1
glibc-testsuite-src openSUSE:Leap 15.1All versions2.26-lp151.19.3.1

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Gnu Glibc, Netapp Active Iq Unified Manager, Netapp Cloud Backup and 5 more.

How do I fix CVE-2020-10029?

Upgrade to a fixed version.

Is CVE-2020-10029 being exploited?

There is no known exploitation of CVE-2020-10029 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-10029, GHSA-68cv-639q-x75m, SUSE-SU-2020:0668-1, SUSE-SU-2020:3024-1, UBUNTU-CVE-2020-10029, openSUSE-SU-2020:0381-1.

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