An update for libX11 is now available for openEuler-22.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2023-1378 Final 1.0 1.0 2023-06-27 Initial 2023-06-27 2023-06-27 openEuler SA Tool V1.0 2023-06-27 libX11 security update An update for libX11 is now available for openEuler-22.03-LTS. Core X11 protocol client library. Security Fix(es): A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, an out-of-bounds value provided by a malicious server (or a malicious proxy-in-the-middle) can only overwrite other portions of the Display structure and not write outside the bounds of the Display structure itself, possibly causing the client to crash with this memory corruption.(CVE-2023-3138) An update for libX11 is now available for openEuler-22.03-LTS. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium libX11 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1378 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-3138 https://nvd.nist.gov/vuln/detail/CVE-2023-3138 openEuler-22.03-LTS libX11-debuginfo-1.7.2-7.oe2203.aarch64.rpm libX11-devel-1.7.2-7.oe2203.aarch64.rpm libX11-1.7.2-7.oe2203.aarch64.rpm libX11-debugsource-1.7.2-7.oe2203.aarch64.rpm libX11-help-1.7.2-7.oe2203.noarch.rpm libX11-1.7.2-7.oe2203.src.rpm libX11-1.7.2-7.oe2203.x86_64.rpm libX11-devel-1.7.2-7.oe2203.x86_64.rpm libX11-debuginfo-1.7.2-7.oe2203.x86_64.rpm libX11-debugsource-1.7.2-7.oe2203.x86_64.rpm A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, an out-of-bounds value provided by a malicious server (or a malicious proxy-in-the-middle) can only overwrite other portions of the Display structure and not write outside the bounds of the Display structure itself, possibly causing the client to crash with this memory corruption. 2023-06-27 CVE-2023-3138 openEuler-22.03-LTS Medium 5.5 AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L libX11 security update 2023-06-27 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1378