Detections
Analytics

Amazon Linux 2 : glibc (ALAS-2022-1857)

high Nessus Plugin ID 166411

Language:

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of glibc installed on the remote host is prior to 2.26-61. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1857 advisory.

 A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system. (CVE-2021-3999)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'yum update glibc' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2022-1857.html

https://alas.aws.amazon.com/cve/html/CVE-2021-3999.html

Plugin Details

Severity: High

ID: 166411

File Name: al2_ALAS-2022-1857.nasl

Version: 1.5

Type: local

Agent: unix

Published: 10/21/2022

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2021-3999

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:glibc-langpack-es, p-cpe:/a:amazon:linux:glibc-static, p-cpe:/a:amazon:linux:glibc-langpack-ia, p-cpe:/a:amazon:linux:glibc-langpack-tr, p-cpe:/a:amazon:linux:glibc-langpack-nb, p-cpe:/a:amazon:linux:glibc-langpack-af, p-cpe:/a:amazon:linux:glibc-langpack-ht, p-cpe:/a:amazon:linux:glibc-langpack-ts, p-cpe:/a:amazon:linux:glibc-langpack-wal, p-cpe:/a:amazon:linux:nss_nis, p-cpe:/a:amazon:linux:glibc-langpack-ak, p-cpe:/a:amazon:linux:glibc-langpack-nan, p-cpe:/a:amazon:linux:glibc-langpack-bg, p-cpe:/a:amazon:linux:glibc-langpack-hak, p-cpe:/a:amazon:linux:glibc-langpack-se, p-cpe:/a:amazon:linux:glibc-langpack-sr, p-cpe:/a:amazon:linux:glibc-langpack-ms, p-cpe:/a:amazon:linux:glibc-langpack-mhr, p-cpe:/a:amazon:linux:glibc-langpack-kw, p-cpe:/a:amazon:linux:glibc-langpack-dz, p-cpe:/a:amazon:linux:glibc-langpack-lij, p-cpe:/a:amazon:linux:glibc-langpack-mi, p-cpe:/a:amazon:linux:glibc-langpack-lzh, p-cpe:/a:amazon:linux:glibc-langpack-mai, p-cpe:/a:amazon:linux:glibc-langpack-ug, p-cpe:/a:amazon:linux:glibc-langpack-lg, p-cpe:/a:amazon:linux:glibc-devel, p-cpe:/a:amazon:linux:glibc-langpack-ha, p-cpe:/a:amazon:linux:glibc-langpack-nds, p-cpe:/a:amazon:linux:glibc-langpack-ur, p-cpe:/a:amazon:linux:glibc-langpack-hsb, p-cpe:/a:amazon:linux:glibc-langpack-as, p-cpe:/a:amazon:linux:glibc-langpack-te, p-cpe:/a:amazon:linux:libcrypt, p-cpe:/a:amazon:linux:glibc-langpack-ve, p-cpe:/a:amazon:linux:glibc-langpack-pa, p-cpe:/a:amazon:linux:glibc-minimal-langpack, p-cpe:/a:amazon:linux:glibc-langpack-tcy, p-cpe:/a:amazon:linux:glibc-langpack-lv, p-cpe:/a:amazon:linux:glibc-langpack-mg, p-cpe:/a:amazon:linux:glibc-langpack-it, p-cpe:/a:amazon:linux:glibc-langpack-niu, p-cpe:/a:amazon:linux:glibc-langpack-os, p-cpe:/a:amazon:linux:glibc-langpack-so, p-cpe:/a:amazon:linux:nscd, p-cpe:/a:amazon:linux:glibc-langpack-chr, p-cpe:/a:amazon:linux:glibc-langpack-kn, p-cpe:/a:amazon:linux:glibc-langpack-shs, p-cpe:/a:amazon:linux:glibc-langpack-ce, p-cpe:/a:amazon:linux:libcrypt-nss, p-cpe:/a:amazon:linux:glibc-langpack-id, p-cpe:/a:amazon:linux:glibc-langpack-li, p-cpe:/a:amazon:linux:glibc-langpack-unm, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:glibc-langpack-gd, p-cpe:/a:amazon:linux:glibc-langpack-hu, p-cpe:/a:amazon:linux:glibc-langpack-sat, p-cpe:/a:amazon:linux:glibc-langpack-sq, p-cpe:/a:amazon:linux:glibc-langpack-yi, p-cpe:/a:amazon:linux:glibc-langpack-the, p-cpe:/a:amazon:linux:glibc-langpack-da, p-cpe:/a:amazon:linux:glibc-langpack-tk, p-cpe:/a:amazon:linux:glibc-langpack-hr, p-cpe:/a:amazon:linux:glibc-langpack-mni, p-cpe:/a:amazon:linux:glibc-langpack-si, p-cpe:/a:amazon:linux:glibc-langpack-xh, p-cpe:/a:amazon:linux:glibc-langpack-raj, p-cpe:/a:amazon:linux:glibc-langpack-ast, p-cpe:/a:amazon:linux:glibc-langpack-hne, p-cpe:/a:amazon:linux:glibc-langpack-ayc, p-cpe:/a:amazon:linux:glibc-langpack-sid, p-cpe:/a:amazon:linux:glibc-langpack-csb, p-cpe:/a:amazon:linux:glibc-langpack-nr, p-cpe:/a:amazon:linux:glibc-langpack-nhn, p-cpe:/a:amazon:linux:glibc-langpack-yue, p-cpe:/a:amazon:linux:glibc-langpack-my, p-cpe:/a:amazon:linux:glibc-langpack-fur, p-cpe:/a:amazon:linux:glibc-langpack-sv, p-cpe:/a:amazon:linux:glibc-langpack-fr, p-cpe:/a:amazon:linux:glibc-langpack-nso, p-cpe:/a:amazon:linux:glibc-langpack-vi, p-cpe:/a:amazon:linux:glibc-langpack-lt, p-cpe:/a:amazon:linux:glibc-langpack-ja, p-cpe:/a:amazon:linux:glibc-langpack-sa, p-cpe:/a:amazon:linux:glibc-langpack-pl, p-cpe:/a:amazon:linux:glibc-langpack-lb, p-cpe:/a:amazon:linux:glibc-langpack-mn, p-cpe:/a:amazon:linux:glibc-langpack-sgs, p-cpe:/a:amazon:linux:glibc-langpack-et, p-cpe:/a:amazon:linux:glibc-langpack-wo, p-cpe:/a:amazon:linux:glibc-langpack-zh, p-cpe:/a:amazon:linux:nss_hesiod, p-cpe:/a:amazon:linux:glibc-langpack-ik, p-cpe:/a:amazon:linux:glibc-langpack-hy, p-cpe:/a:amazon:linux:glibc-langpack-cmn, p-cpe:/a:amazon:linux:glibc-langpack-tt, p-cpe:/a:amazon:linux:glibc-all-langpacks, p-cpe:/a:amazon:linux:glibc-langpack-ks, p-cpe:/a:amazon:linux:glibc-langpack-bem, p-cpe:/a:amazon:linux:glibc-langpack-bho, p-cpe:/a:amazon:linux:glibc-langpack-an, p-cpe:/a:amazon:linux:glibc-benchtests, p-cpe:/a:amazon:linux:glibc-langpack-ku, p-cpe:/a:amazon:linux:glibc-langpack-fo, p-cpe:/a:amazon:linux:glibc-langpack-ml, p-cpe:/a:amazon:linux:glibc-langpack-be, p-cpe:/a:amazon:linux:glibc-langpack-ar, p-cpe:/a:amazon:linux:glibc-langpack-bhb, p-cpe:/a:amazon:linux:glibc-langpack-ln, p-cpe:/a:amazon:linux:glibc-langpack-bn, p-cpe:/a:amazon:linux:glibc-langpack-ta, p-cpe:/a:amazon:linux:glibc-langpack-ru, p-cpe:/a:amazon:linux:nss_db, p-cpe:/a:amazon:linux:glibc-langpack-or, p-cpe:/a:amazon:linux:glibc-langpack-tn, p-cpe:/a:amazon:linux:glibc-nss-devel, p-cpe:/a:amazon:linux:glibc-langpack-dv, p-cpe:/a:amazon:linux:glibc-langpack-sl, p-cpe:/a:amazon:linux:glibc-langpack-ps, p-cpe:/a:amazon:linux:glibc-langpack-hi, p-cpe:/a:amazon:linux:glibc-langpack-az, p-cpe:/a:amazon:linux:glibc-langpack-eu, p-cpe:/a:amazon:linux:glibc-langpack-km, p-cpe:/a:amazon:linux:glibc-langpack-mk, p-cpe:/a:amazon:linux:glibc-langpack-th, p-cpe:/a:amazon:linux:glibc-locale-source, p-cpe:/a:amazon:linux:glibc-langpack-sk, p-cpe:/a:amazon:linux:glibc-langpack-doi, p-cpe:/a:amazon:linux:glibc-langpack-tig, p-cpe:/a:amazon:linux:glibc-langpack-cv, p-cpe:/a:amazon:linux:glibc-headers, p-cpe:/a:amazon:linux:glibc-langpack-ky, p-cpe:/a:amazon:linux:glibc-langpack-mt, p-cpe:/a:amazon:linux:glibc-langpack-zu, p-cpe:/a:amazon:linux:glibc-langpack-mag, p-cpe:/a:amazon:linux:glibc-langpack-kl, p-cpe:/a:amazon:linux:glibc-langpack-ko, p-cpe:/a:amazon:linux:glibc-langpack-he, p-cpe:/a:amazon:linux:glibc-langpack-ne, p-cpe:/a:amazon:linux:glibc-langpack-fy, p-cpe:/a:amazon:linux:glibc-langpack-wae, p-cpe:/a:amazon:linux:glibc-langpack-fa, p-cpe:/a:amazon:linux:glibc-langpack-br, p-cpe:/a:amazon:linux:glibc-common, p-cpe:/a:amazon:linux:glibc, p-cpe:/a:amazon:linux:glibc-langpack-en, p-cpe:/a:amazon:linux:glibc-langpack-kk, p-cpe:/a:amazon:linux:glibc-langpack-nn, p-cpe:/a:amazon:linux:glibc-langpack-om, p-cpe:/a:amazon:linux:glibc-langpack-sd, p-cpe:/a:amazon:linux:glibc-utils, p-cpe:/a:amazon:linux:glibc-debuginfo, p-cpe:/a:amazon:linux:glibc-langpack-ga, p-cpe:/a:amazon:linux:glibc-langpack-bo, p-cpe:/a:amazon:linux:glibc-langpack-byn, p-cpe:/a:amazon:linux:glibc-langpack-uk, p-cpe:/a:amazon:linux:glibc-langpack-gu, p-cpe:/a:amazon:linux:glibc-langpack-st, p-cpe:/a:amazon:linux:glibc-langpack-sw, p-cpe:/a:amazon:linux:glibc-langpack-fi, p-cpe:/a:amazon:linux:glibc-langpack-aa, p-cpe:/a:amazon:linux:glibc-langpack-brx, p-cpe:/a:amazon:linux:glibc-langpack-oc, p-cpe:/a:amazon:linux:glibc-langpack-fil, p-cpe:/a:amazon:linux:glibc-langpack-gv, p-cpe:/a:amazon:linux:glibc-langpack-iu, p-cpe:/a:amazon:linux:glibc-langpack-crh, p-cpe:/a:amazon:linux:glibc-langpack-rw, p-cpe:/a:amazon:linux:glibc-langpack-tl, p-cpe:/a:amazon:linux:glibc-langpack-ca, p-cpe:/a:amazon:linux:glibc-langpack-gez, p-cpe:/a:amazon:linux:glibc-langpack-nl, p-cpe:/a:amazon:linux:glibc-langpack-ro, p-cpe:/a:amazon:linux:glibc-langpack-am, p-cpe:/a:amazon:linux:glibc-langpack-lo, p-cpe:/a:amazon:linux:glibc-debuginfo-common, p-cpe:/a:amazon:linux:glibc-langpack-cy, p-cpe:/a:amazon:linux:glibc-langpack-de, p-cpe:/a:amazon:linux:glibc-langpack-pt, p-cpe:/a:amazon:linux:glibc-langpack-ka, p-cpe:/a:amazon:linux:glibc-langpack-pap, p-cpe:/a:amazon:linux:glibc-langpack-cs, p-cpe:/a:amazon:linux:glibc-langpack-eo, p-cpe:/a:amazon:linux:glibc-langpack-ig, p-cpe:/a:amazon:linux:glibc-langpack-gl, p-cpe:/a:amazon:linux:glibc-langpack-mr, p-cpe:/a:amazon:linux:glibc-langpack-quz, p-cpe:/a:amazon:linux:glibc-langpack-uz, p-cpe:/a:amazon:linux:glibc-langpack-is, p-cpe:/a:amazon:linux:glibc-langpack-yo, p-cpe:/a:amazon:linux:glibc-langpack-kok, p-cpe:/a:amazon:linux:glibc-langpack-ff, p-cpe:/a:amazon:linux:glibc-langpack-anp, p-cpe:/a:amazon:linux:glibc-langpack-ss, p-cpe:/a:amazon:linux:glibc-langpack-bs, p-cpe:/a:amazon:linux:glibc-langpack-ti, p-cpe:/a:amazon:linux:glibc-langpack-wa, p-cpe:/a:amazon:linux:glibc-langpack-tg, p-cpe:/a:amazon:linux:glibc-langpack-el, p-cpe:/a:amazon:linux:glibc-langpack-sc, p-cpe:/a:amazon:linux:glibc-langpack-szl, p-cpe:/a:amazon:linux:glibc-langpack-ber

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/17/2022

Vulnerability Publication Date: 3/15/2022

Reference Information

CVE: CVE-2021-3999