An update for entr is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-3486 Final 1.0 1.0 2026-08-20 Initial 2026-08-20 2026-08-20 openEuler SA Tool V1.0 2026-08-20 entr security update An update for entr is now available for openEuler-24.03-LTS-SP3 A file watcher, which can run specified commands when target files change. Security Fix(es): entr is vulnerable to Heap-based buffer overflow in run_utility() function. The function allocates a fixed-size heap buffer using malloc(ARG_MAX) and copies command-line arguments into it. It advances the destination pointer based on the return value of strlcpy(), which returns the total length of the source string rather than the number of bytes written. When the buffer is exactly filled, the remaining size underflows as an unsigned size_t, causing subsequent copies to write out of bounds. This can be triggered by supplying command-line arguments whose combined length fills the buffer, or via the /_ substitution feature which expands a short token into a longer pathname at runtime. The local attacker can cause memory corruption, process abort, and denial of service. This issue was fixed in commit 2467fe0.(CVE-2026-18370) An update for entr is now available for master/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS-Next/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-SP3/openEuler-24.03-LTS-SP4. 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 entr https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3486 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-18370 https://nvd.nist.gov/vuln/detail/CVE-2026-18370 openEuler-24.03-LTS-SP3 entr-5.8-2.oe2403sp3.x86_64.rpm entr-debuginfo-5.8-2.oe2403sp3.x86_64.rpm entr-debugsource-5.8-2.oe2403sp3.x86_64.rpm entr-5.8-2.oe2403sp3.aarch64.rpm entr-debuginfo-5.8-2.oe2403sp3.aarch64.rpm entr-debugsource-5.8-2.oe2403sp3.aarch64.rpm entr-5.8-2.oe2403sp3.src.rpm entr is vulnerable to Heap-based buffer overflow in run_utility() function. The function allocates a fixed-size heap buffer using malloc(ARG_MAX) and copies command-line arguments into it. It advances the destination pointer based on the return value of strlcpy(), which returns the total length of the source string rather than the number of bytes written. When the buffer is exactly filled, the remaining size underflows as an unsigned size_t, causing subsequent copies to write out of bounds. This can be triggered by supplying command-line arguments whose combined length fills the buffer, or via the /_ substitution feature which expands a short token into a longer pathname at runtime. The local attacker can cause memory corruption, process abort, and denial of service. This issue was fixed in commit 2467fe0. 2026-08-20 CVE-2026-18370 openEuler-24.03-LTS-SP3 Medium 4.8 AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X entr security update 2026-08-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3486