Oracle Linux 8:glibc (ELSA-2021-4358)

critical Nessus Plugin ID 155417

概要

遠端 Oracle Linux 主機缺少一個或多個安全性更新。

說明

遠端 Oracle Linux 8 主機中安裝的套件受到 ELSA-2021-4358 公告中提及的多個弱點影響。

- GNU C 程式庫 (亦即 glibc) 2.32 和 2.33 版本中的 mq_notify 函式存在釋放後使用問題。此函式可能會在被呼叫者釋放後使用通知執行緒屬性物件 (透過其 struct sigevent 參數傳送),進而導致拒絕服務 (應用程式損毀) 或可能造成其他不明影響。(CVE-2021-33574)

- 處理 netgroup 查閱要求時,GNU C 程式庫 (即 glibc 或 libc6) 2.29 至 2.33 中的名稱伺服器快取程序 (nscd) 可能因重複釋放而損毀,進而可能導致本機系統上的服務降級或拒絕服務。這與 netgroupcache.c 有關。
(CVE-2021-27645)

- 在 GNU C 程式庫 (亦即 glibc) 2.33 以及之前的所有版本中,當使用不受信任的特製模式呼叫時,wordexp 函式可能會發生損毀或讀取 parse_param (posix/wordexp.c 中) 中的任意記憶體,進而可能導致拒絕服務或資訊洩漏。發生這種情況是因為使用了 atoi,但本應該使用 strtoul 來確保計算正確。(CVE-2021-35942)

請注意,Nessus 並未測試此問題,而是僅依據應用程式自我報告的版本號碼。

解決方案

更新受影響的套件。

另請參閱

https://linux.oracle.com/errata/ELSA-2021-4358.html

Plugin 詳細資訊

嚴重性: Critical

ID: 155417

檔案名稱: oraclelinux_ELSA-2021-4358.nasl

版本: 1.3

類型: local

代理程式: unix

已發布: 2021/11/17

已更新: 2023/11/23

支援的感應器: Frictionless Assessment Agent, Nessus Agent, Nessus

風險資訊

VPR

風險因素: Medium

分數: 6.7

CVSS v2

風險因素: High

基本分數: 7.5

時間分數: 5.9

媒介: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS 評分資料來源: CVE-2021-33574

CVSS v3

風險因素: Critical

基本分數: 9.8

時間分數: 8.8

媒介: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

時間媒介: CVSS:3.0/E:P/RL:O/RC:C

弱點資訊

CPE: p-cpe:/a:oracle:linux:glibc-langpack-mag, p-cpe:/a:oracle:linux:glibc-langpack-mai, p-cpe:/a:oracle:linux:glibc-langpack-mfe, p-cpe:/a:oracle:linux:glibc-langpack-mg, p-cpe:/a:oracle:linux:glibc-langpack-mhr, p-cpe:/a:oracle:linux:glibc-langpack-mi, p-cpe:/a:oracle:linux:glibc-langpack-miq, p-cpe:/a:oracle:linux:glibc-langpack-mjw, p-cpe:/a:oracle:linux:glibc-langpack-mk, p-cpe:/a:oracle:linux:glibc-langpack-ml, p-cpe:/a:oracle:linux:glibc-langpack-mn, p-cpe:/a:oracle:linux:glibc-langpack-mni, p-cpe:/a:oracle:linux:glibc-langpack-mr, p-cpe:/a:oracle:linux:glibc-langpack-ms, p-cpe:/a:oracle:linux:glibc-langpack-mt, p-cpe:/a:oracle:linux:glibc-langpack-my, p-cpe:/a:oracle:linux:glibc-langpack-nan, p-cpe:/a:oracle:linux:glibc-langpack-nb, p-cpe:/a:oracle:linux:glibc-langpack-nds, p-cpe:/a:oracle:linux:glibc-langpack-ne, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:compat-libpthread-nonshared, p-cpe:/a:oracle:linux:glibc, p-cpe:/a:oracle:linux:glibc-all-langpacks, p-cpe:/a:oracle:linux:glibc-benchtests, p-cpe:/a:oracle:linux:glibc-common, p-cpe:/a:oracle:linux:glibc-devel, p-cpe:/a:oracle:linux:glibc-headers, p-cpe:/a:oracle:linux:glibc-langpack-aa, p-cpe:/a:oracle:linux:glibc-langpack-af, p-cpe:/a:oracle:linux:glibc-langpack-agr, p-cpe:/a:oracle:linux:glibc-langpack-ak, p-cpe:/a:oracle:linux:glibc-langpack-am, p-cpe:/a:oracle:linux:glibc-langpack-an, p-cpe:/a:oracle:linux:glibc-langpack-anp, p-cpe:/a:oracle:linux:glibc-langpack-ar, p-cpe:/a:oracle:linux:glibc-langpack-as, p-cpe:/a:oracle:linux:glibc-langpack-ast, p-cpe:/a:oracle:linux:glibc-langpack-ayc, p-cpe:/a:oracle:linux:glibc-langpack-az, p-cpe:/a:oracle:linux:glibc-langpack-be, p-cpe:/a:oracle:linux:glibc-langpack-bem, p-cpe:/a:oracle:linux:glibc-langpack-ber, p-cpe:/a:oracle:linux:glibc-langpack-bg, p-cpe:/a:oracle:linux:glibc-langpack-bhb, p-cpe:/a:oracle:linux:glibc-langpack-bho, p-cpe:/a:oracle:linux:glibc-langpack-bi, p-cpe:/a:oracle:linux:glibc-langpack-bn, p-cpe:/a:oracle:linux:glibc-langpack-bo, p-cpe:/a:oracle:linux:glibc-langpack-br, p-cpe:/a:oracle:linux:glibc-langpack-brx, p-cpe:/a:oracle:linux:glibc-langpack-bs, p-cpe:/a:oracle:linux:glibc-langpack-byn, p-cpe:/a:oracle:linux:glibc-langpack-ca, p-cpe:/a:oracle:linux:glibc-langpack-ce, p-cpe:/a:oracle:linux:glibc-langpack-chr, p-cpe:/a:oracle:linux:glibc-langpack-cmn, p-cpe:/a:oracle:linux:glibc-langpack-crh, p-cpe:/a:oracle:linux:glibc-langpack-cs, p-cpe:/a:oracle:linux:glibc-langpack-csb, p-cpe:/a:oracle:linux:glibc-langpack-cv, p-cpe:/a:oracle:linux:glibc-langpack-cy, p-cpe:/a:oracle:linux:glibc-langpack-da, p-cpe:/a:oracle:linux:glibc-langpack-de, p-cpe:/a:oracle:linux:glibc-langpack-doi, p-cpe:/a:oracle:linux:glibc-langpack-dsb, p-cpe:/a:oracle:linux:glibc-langpack-dv, p-cpe:/a:oracle:linux:glibc-langpack-dz, p-cpe:/a:oracle:linux:glibc-langpack-el, p-cpe:/a:oracle:linux:glibc-langpack-en, p-cpe:/a:oracle:linux:glibc-langpack-eo, p-cpe:/a:oracle:linux:glibc-langpack-es, p-cpe:/a:oracle:linux:glibc-langpack-et, p-cpe:/a:oracle:linux:glibc-langpack-eu, p-cpe:/a:oracle:linux:glibc-langpack-fa, p-cpe:/a:oracle:linux:glibc-langpack-ff, p-cpe:/a:oracle:linux:glibc-langpack-fi, p-cpe:/a:oracle:linux:glibc-langpack-fil, p-cpe:/a:oracle:linux:glibc-langpack-fo, p-cpe:/a:oracle:linux:glibc-langpack-fr, p-cpe:/a:oracle:linux:glibc-langpack-fur, p-cpe:/a:oracle:linux:glibc-langpack-fy, p-cpe:/a:oracle:linux:glibc-langpack-ga, p-cpe:/a:oracle:linux:glibc-langpack-gd, p-cpe:/a:oracle:linux:glibc-langpack-gez, p-cpe:/a:oracle:linux:glibc-langpack-gl, p-cpe:/a:oracle:linux:glibc-langpack-gu, p-cpe:/a:oracle:linux:glibc-langpack-gv, p-cpe:/a:oracle:linux:glibc-langpack-ha, p-cpe:/a:oracle:linux:glibc-langpack-hak, p-cpe:/a:oracle:linux:glibc-langpack-he, p-cpe:/a:oracle:linux:glibc-langpack-hi, p-cpe:/a:oracle:linux:glibc-langpack-hif, p-cpe:/a:oracle:linux:glibc-langpack-hne, p-cpe:/a:oracle:linux:glibc-langpack-hr, p-cpe:/a:oracle:linux:glibc-langpack-hsb, p-cpe:/a:oracle:linux:glibc-langpack-ht, p-cpe:/a:oracle:linux:glibc-langpack-nhn, p-cpe:/a:oracle:linux:glibc-langpack-niu, p-cpe:/a:oracle:linux:glibc-langpack-nl, p-cpe:/a:oracle:linux:glibc-langpack-nn, p-cpe:/a:oracle:linux:glibc-langpack-nr, p-cpe:/a:oracle:linux:glibc-langpack-nso, p-cpe:/a:oracle:linux:glibc-langpack-oc, p-cpe:/a:oracle:linux:glibc-langpack-om, p-cpe:/a:oracle:linux:glibc-langpack-or, p-cpe:/a:oracle:linux:glibc-langpack-os, p-cpe:/a:oracle:linux:glibc-langpack-pa, p-cpe:/a:oracle:linux:glibc-langpack-pap, p-cpe:/a:oracle:linux:glibc-langpack-pl, p-cpe:/a:oracle:linux:glibc-langpack-ps, p-cpe:/a:oracle:linux:glibc-langpack-pt, p-cpe:/a:oracle:linux:glibc-langpack-quz, p-cpe:/a:oracle:linux:glibc-langpack-raj, p-cpe:/a:oracle:linux:glibc-langpack-ro, p-cpe:/a:oracle:linux:glibc-langpack-ru, p-cpe:/a:oracle:linux:glibc-langpack-rw, p-cpe:/a:oracle:linux:glibc-langpack-sa, p-cpe:/a:oracle:linux:glibc-langpack-sah, p-cpe:/a:oracle:linux:glibc-langpack-sat, p-cpe:/a:oracle:linux:glibc-langpack-sc, p-cpe:/a:oracle:linux:glibc-langpack-sd, p-cpe:/a:oracle:linux:glibc-langpack-se, p-cpe:/a:oracle:linux:glibc-langpack-sgs, p-cpe:/a:oracle:linux:glibc-langpack-shn, p-cpe:/a:oracle:linux:glibc-langpack-shs, p-cpe:/a:oracle:linux:glibc-langpack-si, p-cpe:/a:oracle:linux:glibc-langpack-sid, p-cpe:/a:oracle:linux:glibc-langpack-hu, p-cpe:/a:oracle:linux:glibc-langpack-hy, p-cpe:/a:oracle:linux:glibc-langpack-ia, p-cpe:/a:oracle:linux:glibc-langpack-id, p-cpe:/a:oracle:linux:glibc-langpack-ig, p-cpe:/a:oracle:linux:glibc-langpack-ik, p-cpe:/a:oracle:linux:glibc-langpack-is, p-cpe:/a:oracle:linux:glibc-langpack-it, p-cpe:/a:oracle:linux:glibc-langpack-iu, p-cpe:/a:oracle:linux:glibc-langpack-ja, p-cpe:/a:oracle:linux:glibc-langpack-ka, p-cpe:/a:oracle:linux:glibc-langpack-kab, p-cpe:/a:oracle:linux:glibc-langpack-kk, p-cpe:/a:oracle:linux:glibc-langpack-kl, p-cpe:/a:oracle:linux:glibc-langpack-km, p-cpe:/a:oracle:linux:glibc-langpack-kn, p-cpe:/a:oracle:linux:glibc-langpack-ko, p-cpe:/a:oracle:linux:glibc-langpack-kok, p-cpe:/a:oracle:linux:glibc-langpack-ks, p-cpe:/a:oracle:linux:glibc-langpack-ku, p-cpe:/a:oracle:linux:glibc-langpack-kw, p-cpe:/a:oracle:linux:glibc-langpack-ky, p-cpe:/a:oracle:linux:glibc-langpack-lb, p-cpe:/a:oracle:linux:glibc-langpack-lg, p-cpe:/a:oracle:linux:glibc-langpack-li, p-cpe:/a:oracle:linux:glibc-langpack-lij, p-cpe:/a:oracle:linux:glibc-langpack-ln, p-cpe:/a:oracle:linux:glibc-langpack-lo, p-cpe:/a:oracle:linux:glibc-langpack-lt, p-cpe:/a:oracle:linux:glibc-langpack-lv, p-cpe:/a:oracle:linux:glibc-langpack-lzh, p-cpe:/a:oracle:linux:glibc-langpack-sl, p-cpe:/a:oracle:linux:glibc-langpack-sm, p-cpe:/a:oracle:linux:glibc-langpack-so, p-cpe:/a:oracle:linux:glibc-langpack-sq, p-cpe:/a:oracle:linux:glibc-langpack-sr, p-cpe:/a:oracle:linux:glibc-langpack-ss, p-cpe:/a:oracle:linux:glibc-langpack-st, p-cpe:/a:oracle:linux:glibc-langpack-sv, p-cpe:/a:oracle:linux:glibc-langpack-sw, p-cpe:/a:oracle:linux:glibc-langpack-szl, p-cpe:/a:oracle:linux:glibc-langpack-ta, p-cpe:/a:oracle:linux:glibc-langpack-tcy, p-cpe:/a:oracle:linux:glibc-langpack-te, p-cpe:/a:oracle:linux:glibc-langpack-tg, p-cpe:/a:oracle:linux:glibc-langpack-th, p-cpe:/a:oracle:linux:glibc-langpack-the, p-cpe:/a:oracle:linux:glibc-langpack-ti, p-cpe:/a:oracle:linux:glibc-langpack-tig, p-cpe:/a:oracle:linux:glibc-langpack-tk, p-cpe:/a:oracle:linux:glibc-langpack-tl, p-cpe:/a:oracle:linux:glibc-langpack-tn, p-cpe:/a:oracle:linux:glibc-langpack-to, p-cpe:/a:oracle:linux:glibc-langpack-tpi, p-cpe:/a:oracle:linux:glibc-langpack-tr, p-cpe:/a:oracle:linux:glibc-langpack-ts, p-cpe:/a:oracle:linux:glibc-langpack-tt, p-cpe:/a:oracle:linux:glibc-langpack-ug, p-cpe:/a:oracle:linux:glibc-langpack-uk, p-cpe:/a:oracle:linux:glibc-langpack-unm, p-cpe:/a:oracle:linux:glibc-langpack-ur, p-cpe:/a:oracle:linux:glibc-langpack-uz, p-cpe:/a:oracle:linux:glibc-langpack-ve, p-cpe:/a:oracle:linux:glibc-langpack-vi, p-cpe:/a:oracle:linux:glibc-langpack-wa, p-cpe:/a:oracle:linux:glibc-langpack-wae, p-cpe:/a:oracle:linux:glibc-langpack-wal, p-cpe:/a:oracle:linux:glibc-langpack-wo, p-cpe:/a:oracle:linux:glibc-langpack-xh, p-cpe:/a:oracle:linux:glibc-langpack-yi, p-cpe:/a:oracle:linux:glibc-langpack-yo, p-cpe:/a:oracle:linux:glibc-langpack-yue, p-cpe:/a:oracle:linux:glibc-langpack-yuw, p-cpe:/a:oracle:linux:glibc-langpack-zh, p-cpe:/a:oracle:linux:glibc-langpack-zu, p-cpe:/a:oracle:linux:glibc-locale-source, p-cpe:/a:oracle:linux:glibc-minimal-langpack, p-cpe:/a:oracle:linux:glibc-nss-devel, p-cpe:/a:oracle:linux:glibc-static, p-cpe:/a:oracle:linux:glibc-utils, p-cpe:/a:oracle:linux:libnsl, p-cpe:/a:oracle:linux:nscd, p-cpe:/a:oracle:linux:nss_db, p-cpe:/a:oracle:linux:nss_hesiod, p-cpe:/a:oracle:linux:glibc-langpack-sk

必要的 KB 項目: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

可被惡意程式利用: true

可輕鬆利用: Exploits are available

修補程式發佈日期: 2021/11/16

弱點發布日期: 2021/2/24

參考資訊

CVE: CVE-2021-27645, CVE-2021-33574, CVE-2021-35942