{"schema_version":"1.7.2","id":"OESA-2023-1470","modified":"2023-08-06T11:05:37Z","published":"2023-08-06T11:05:37Z","upstream":["CVE-2023-21255","CVE-2023-3609","CVE-2023-3611","CVE-2023-3776","CVE-2023-3812"],"summary":"kernel security update","details":"The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nIn multiple functions of binder.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\r\n\r\n(CVE-2023-21255)\r\n\r\nA use-after-free vulnerability in the Linux kernel\u0026apos;s net/sched: cls_u32 component can be exploited to achieve local privilege escalation.\r\n\r\nIf tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.\r\n\r\nWe recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.\r\n\r\n(CVE-2023-3609)\r\n\r\nAn out-of-bounds write vulnerability in the Linux kernel\u0026apos;s net/sched: sch_qfq component can be exploited to achieve local privilege escalation.\r\n\r\nThe qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.\r\n\r\nWe recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.\r\n\r\n(CVE-2023-3611)\r\n\r\nA use-after-free vulnerability in the Linux kernel\u0026apos;s net/sched: cls_fw component can be exploited to achieve local privilege escalation.\r\n\r\nIf tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.\r\n\r\nWe recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.\r\n\r\n(CVE-2023-3776)\r\n\r\nAn out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.(CVE-2023-3812)","affected":[{"package":{"ecosystem":"openEuler:20.03-LTS-SP3","name":"kernel","purl":"pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.19.90-2308.1.0.0212.oe1"}]}],"ecosystem_specific":{"aarch64":["bpftool-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","perf-debuginfo-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","python2-perf-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-devel-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","python3-perf-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-debugsource-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","python2-perf-debuginfo-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-debuginfo-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-source-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-tools-debuginfo-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","perf-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","python3-perf-debuginfo-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","bpftool-debuginfo-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-tools-devel-4.19.90-2308.1.0.0212.oe1.aarch64.rpm","kernel-tools-4.19.90-2308.1.0.0212.oe1.aarch64.rpm"],"src":["kernel-4.19.90-2308.1.0.0212.oe1.src.rpm"],"x86_64":["perf-debuginfo-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-tools-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","python2-perf-debuginfo-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","perf-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-devel-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","bpftool-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","python2-perf-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-tools-debuginfo-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","python3-perf-debuginfo-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","bpftool-debuginfo-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-debuginfo-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-source-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-tools-devel-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","kernel-debugsource-4.19.90-2308.1.0.0212.oe1.x86_64.rpm","python3-perf-4.19.90-2308.1.0.0212.oe1.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1470"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21255"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3609"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3611"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3776"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3812"}],"database_specific":{"severity":"High"}}