Oracle Linux 8 : glibc (ELSA-2020-4444)

high Nessus Plugin ID 142780

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-4444 advisory.

- A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32. (CVE-2020-1752)

- An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability. (CVE-2020-1751)

- The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c. (CVE-2020-10029)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2020-4444.html

Plugin Details

Severity: High

ID: 142780

File Name: oraclelinux_ELSA-2020-4444.nasl

Version: 1.5

Type: local

Agent: unix

Published: 11/12/2020

Updated: 2/9/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 4.6

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:C

CVSS Score Source: CVE-2020-1751

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2020-1752

Vulnerability Information

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

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/10/2020

Vulnerability Publication Date: 3/4/2020

Reference Information

CVE: CVE-2020-10029, CVE-2020-1751, CVE-2020-1752