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libX11: integer overflow leads to double free in locale handling

🗓️ 18 May 2021 14:20:56Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Integer overflow in libX11 locale handling causes double free; local attackers can crash or execute code.

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ibm
IBM Security Bulletins		Security Bulletin: Cloud Pak for Security uses packages that are vulnerable to several CVEs
19 Oct 202115:38
–ibm
freebsd
FreeBSD		libX11 -- Doublefree in locale handlng code
25 Aug 202000:00
–freebsd
nessus
Tenable Nessus		Amazon Linux 2 : libX11 (ALAS-2020-1567)
9 Dec 202000:00
–nessus
nessus
Tenable Nessus		Amazon Linux AMI : libX11 (ALAS-2020-1463) (deprecated)
18 Dec 202000:00
–nessus
nessus
Tenable Nessus		Amazon Linux AMI : libX11 (ALAS-2021-1462)
14 Jan 202100:00
–nessus
nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0087: userspace graphics, xorg-x11, and mesa (ALINUX3-SA-2022:0087)
14 May 202500:00
–nessus
nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0114: userspace graphics, xorg-x11, and mesa (ALINUX3-SA-2022:0114)
14 May 202500:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : userspace graphics, xorg-x11, and mesa (ALSA-2021:1804)
9 Feb 202200:00
–nessus
nessus
Tenable Nessus		CentOS 8 : userspace graphics, xorg-x11, and mesa (CESA-2021:1804)
19 May 202100:00
–nessus
nessus
Tenable Nessus		CentOS 7 : libX11 (RHSA-2020:4908)
6 Nov 202000:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64drm-utils-debuginfo2.4.103-1.el8drm-utils-debuginfo-2.4.103-1.el8.aarch64.rpm
Red Hat Enterprise Linux8i686drm-utils-debuginfo2.4.103-1.el8drm-utils-debuginfo-2.4.103-1.el8.i686.rpm
Red Hat Enterprise Linux8ppc64ledrm-utils-debuginfo2.4.103-1.el8drm-utils-debuginfo-2.4.103-1.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xdrm-utils-debuginfo2.4.103-1.el8drm-utils-debuginfo-2.4.103-1.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64drm-utils-debuginfo2.4.103-1.el8drm-utils-debuginfo-2.4.103-1.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64egl-wayland1.1.5-3.el8egl-wayland-1.1.5-3.el8.aarch64.rpm
Red Hat Enterprise Linux8i686egl-wayland1.1.5-3.el8egl-wayland-1.1.5-3.el8.i686.rpm
Red Hat Enterprise Linux8ppc64leegl-wayland1.1.5-3.el8egl-wayland-1.1.5-3.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xegl-wayland1.1.5-3.el8egl-wayland-1.1.5-3.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64egl-wayland1.1.5-3.el8egl-wayland-1.1.5-3.el8.x86_64.rpm
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26 Jun 2026 22:26Current
7.6High risk
Vulners AI Score7.6
CVSS 24.6
CVSS 3.17.8
EPSS0.00575
CWE-190
libX11integer overflowdouble freelocale handlinglocal attackersarbitrary code executionunix
4