RockyLinux 10 : glibc (RLSA-2026:19061)

medium Nessus Plugin ID 317963

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19061 advisory.

* glibc: glibc: Incorrect DNS response parsing via crafted DNS server response (CVE-2026-4437)

* glibc: glibc: Invalid DNS hostname returned via gethostbyaddr functions (CVE-2026-4438)

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

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

Solution

Update the affected packages.

See Also

https://errata.rockylinux.org/RLSA-2026:19061

https://bugzilla.redhat.com/show_bug.cgi?id=2449783

https://bugzilla.redhat.com/show_bug.cgi?id=2449777

Plugin Details

Severity: Medium

ID: 317963

File Name: rocky_linux_RLSA-2026-19061.nasl

Version: 1.1

Type: Local

Published: 5/29/2026

Updated: 5/29/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2026-4437

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.9

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

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

CVSS Score Source: CVE-2026-4438

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:glibc-langpack-br, p-cpe:/a:rocky:linux:glibc-langpack-ia, p-cpe:/a:rocky:linux:glibc-langpack-si, p-cpe:/a:rocky:linux:glibc-langpack-tig, p-cpe:/a:rocky:linux:glibc-langpack-ts, p-cpe:/a:rocky:linux:glibc-langpack-yuw, p-cpe:/a:rocky:linux:glibc-langpack-lzh, p-cpe:/a:rocky:linux:glibc-langpack-da, p-cpe:/a:rocky:linux:glibc-langpack-kw, p-cpe:/a:rocky:linux:glibc-langpack-sd, p-cpe:/a:rocky:linux:glibc-langpack-doi, p-cpe:/a:rocky:linux:glibc-all-langpacks, p-cpe:/a:rocky:linux:glibc-langpack-st, p-cpe:/a:rocky:linux:glibc-langpack-ku, p-cpe:/a:rocky:linux:glibc-langpack-rw, p-cpe:/a:rocky:linux:glibc-langpack-yue, p-cpe:/a:rocky:linux:glibc-langpack-sc, p-cpe:/a:rocky:linux:glibc-langpack-mk, p-cpe:/a:rocky:linux:glibc-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-sk, p-cpe:/a:rocky:linux:glibc-gconv-extra-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-ssy, p-cpe:/a:rocky:linux:glibc-langpack-wo, p-cpe:/a:rocky:linux:glibc-langpack-en, p-cpe:/a:rocky:linux:glibc-langpack-bem, p-cpe:/a:rocky:linux:glibc-langpack-oc, p-cpe:/a:rocky:linux:glibc-langpack-ve, p-cpe:/a:rocky:linux:glibc-langpack-is, p-cpe:/a:rocky:linux:glibc-langpack-li, p-cpe:/a:rocky:linux:glibc-langpack-sgs, p-cpe:/a:rocky:linux:glibc-nss-devel, p-cpe:/a:rocky:linux:glibc-langpack-anp, p-cpe:/a:rocky:linux:glibc-langpack-ast, p-cpe:/a:rocky:linux:glibc-langpack-ln, p-cpe:/a:rocky:linux:glibc-langpack-or, p-cpe:/a:rocky:linux:glibc-langpack-ce, p-cpe:/a:rocky:linux:glibc-langpack-lb, p-cpe:/a:rocky:linux:glibc-langpack-tg, p-cpe:/a:rocky:linux:glibc-langpack-kl, p-cpe:/a:rocky:linux:glibc-langpack-uz, p-cpe:/a:rocky:linux:glibc-langpack-hsb, p-cpe:/a:rocky:linux:glibc-langpack-am, p-cpe:/a:rocky:linux:glibc-langpack-gd, p-cpe:/a:rocky:linux:glibc-benchtests, p-cpe:/a:rocky:linux:glibc-langpack-cs, p-cpe:/a:rocky:linux:glibc-langpack-bo, p-cpe:/a:rocky:linux:glibc-langpack-ar, p-cpe:/a:rocky:linux:glibc-langpack-an, p-cpe:/a:rocky:linux:glibc-langpack-brx, p-cpe:/a:rocky:linux:glibc-langpack-ca, p-cpe:/a:rocky:linux:glibc-langpack-mt, p-cpe:/a:rocky:linux:glibc-langpack-sl, p-cpe:/a:rocky:linux:glibc, p-cpe:/a:rocky:linux:glibc-langpack-eu, p-cpe:/a:rocky:linux:glibc-langpack-ru, p-cpe:/a:rocky:linux:glibc-langpack-eo, p-cpe:/a:rocky:linux:glibc-langpack-et, p-cpe:/a:rocky:linux:glibc-langpack-tn, p-cpe:/a:rocky:linux:glibc-langpack-gbm, p-cpe:/a:rocky:linux:glibc-langpack-sat, p-cpe:/a:rocky:linux:glibc-langpack-ur, p-cpe:/a:rocky:linux:glibc-langpack-hak, p-cpe:/a:rocky:linux:glibc-langpack-th, p-cpe:/a:rocky:linux:glibc-langpack-szl, p-cpe:/a:rocky:linux:glibc-langpack-ti, p-cpe:/a:rocky:linux:glibc-langpack-ja, p-cpe:/a:rocky:linux:glibc-langpack-te, p-cpe:/a:rocky:linux:glibc-langpack-fil, p-cpe:/a:rocky:linux:glibc-langpack-tcy, p-cpe:/a:rocky:linux:glibc-langpack-hi, p-cpe:/a:rocky:linux:glibc-langpack-he, p-cpe:/a:rocky:linux:glibc-langpack-aa, p-cpe:/a:rocky:linux:glibc-langpack-lt, p-cpe:/a:rocky:linux:glibc-langpack-sa, p-cpe:/a:rocky:linux:glibc-langpack-bs, p-cpe:/a:rocky:linux:glibc-langpack-rif, p-cpe:/a:rocky:linux:glibc-langpack-sm, cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:glibc-langpack-quz, p-cpe:/a:rocky:linux:glibc-utils, p-cpe:/a:rocky:linux:glibc-langpack-ta, p-cpe:/a:rocky:linux:glibc-langpack-cmn, p-cpe:/a:rocky:linux:glibc-langpack-bn, p-cpe:/a:rocky:linux:glibc-langpack-mi, p-cpe:/a:rocky:linux:glibc-langpack-kab, p-cpe:/a:rocky:linux:glibc-langpack-nso, p-cpe:/a:rocky:linux:glibc-langpack-as, p-cpe:/a:rocky:linux:glibc-langpack-pl, p-cpe:/a:rocky:linux:glibc-langpack-se, p-cpe:/a:rocky:linux:glibc-langpack-fi, p-cpe:/a:rocky:linux:glibc-langpack-ff, p-cpe:/a:rocky:linux:glibc-langpack-nds, p-cpe:/a:rocky:linux:glibc-langpack-wa, p-cpe:/a:rocky:linux:glibc-langpack-hif, p-cpe:/a:rocky:linux:glibc-langpack-agr, p-cpe:/a:rocky:linux:glibc-langpack-tok, p-cpe:/a:rocky:linux:glibc-langpack-nb, p-cpe:/a:rocky:linux:glibc-langpack-mai, p-cpe:/a:rocky:linux:glibc-langpack-ka, p-cpe:/a:rocky:linux:glibc-langpack-mfe, p-cpe:/a:rocky:linux:glibc-langpack-mhr, p-cpe:/a:rocky:linux:glibc-langpack-uk, p-cpe:/a:rocky:linux:glibc-langpack-shn, p-cpe:/a:rocky:linux:nss_hesiod, p-cpe:/a:rocky:linux:glibc-langpack-lij, p-cpe:/a:rocky:linux:glibc-langpack-nhn, p-cpe:/a:rocky:linux:glibc-langpack-hu, p-cpe:/a:rocky:linux:glibc-langpack-hr, p-cpe:/a:rocky:linux:glibc-langpack-kv, p-cpe:/a:rocky:linux:glibc-langpack-pa, p-cpe:/a:rocky:linux:glibc-langpack-bho, p-cpe:/a:rocky:linux:glibc-langpack-sr, p-cpe:/a:rocky:linux:glibc-langpack-mn, p-cpe:/a:rocky:linux:glibc-langpack-tr, p-cpe:/a:rocky:linux:glibc-langpack-crh, p-cpe:/a:rocky:linux:glibc-langpack-ha, p-cpe:/a:rocky:linux:glibc-langpack-zu, p-cpe:/a:rocky:linux:glibc-langpack-fo, p-cpe:/a:rocky:linux:glibc-langpack-unm, p-cpe:/a:rocky:linux:glibc-langpack-fr, p-cpe:/a:rocky:linux:glibc-langpack-mr, p-cpe:/a:rocky:linux:glibc-langpack-nn, p-cpe:/a:rocky:linux:glibc-langpack-pap, p-cpe:/a:rocky:linux:glibc-devel, p-cpe:/a:rocky:linux:glibc-langpack-sw, p-cpe:/a:rocky:linux:glibc-langpack-vi, p-cpe:/a:rocky:linux:glibc-langpack-hy, p-cpe:/a:rocky:linux:glibc-locale-source, p-cpe:/a:rocky:linux:glibc-utils-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-af, p-cpe:/a:rocky:linux:glibc-langpack-mag, p-cpe:/a:rocky:linux:glibc-common, p-cpe:/a:rocky:linux:glibc-langpack-mnw, p-cpe:/a:rocky:linux:glibc-langpack-nan, p-cpe:/a:rocky:linux:glibc-langpack-kk, p-cpe:/a:rocky:linux:glibc-langpack-ne, p-cpe:/a:rocky:linux:glibc-langpack-ga, p-cpe:/a:rocky:linux:glibc-langpack-ak, p-cpe:/a:rocky:linux:glibc-langpack-it, p-cpe:/a:rocky:linux:glibc-langpack-su, p-cpe:/a:rocky:linux:glibc-langpack-wal, p-cpe:/a:rocky:linux:glibc-langpack-csb, p-cpe:/a:rocky:linux:glibc-langpack-be, p-cpe:/a:rocky:linux:glibc-langpack-el, p-cpe:/a:rocky:linux:glibc-doc, p-cpe:/a:rocky:linux:glibc-langpack-yo, p-cpe:/a:rocky:linux:glibc-langpack-niu, p-cpe:/a:rocky:linux:glibc-langpack-ik, p-cpe:/a:rocky:linux:glibc-minimal-langpack, p-cpe:/a:rocky:linux:glibc-langpack-es, p-cpe:/a:rocky:linux:glibc-langpack-tpi, p-cpe:/a:rocky:linux:glibc-langpack-kn, p-cpe:/a:rocky:linux:libnsl, p-cpe:/a:rocky:linux:glibc-langpack-az, p-cpe:/a:rocky:linux:glibc-langpack-ks, p-cpe:/a:rocky:linux:glibc-langpack-chr, p-cpe:/a:rocky:linux:glibc-langpack-ht, p-cpe:/a:rocky:linux:glibc-langpack-nl, p-cpe:/a:rocky:linux:glibc-langpack-ro, p-cpe:/a:rocky:linux:glibc-langpack-yi, p-cpe:/a:rocky:linux:glibc-langpack-iu, p-cpe:/a:rocky:linux:nss_db, p-cpe:/a:rocky:linux:glibc-langpack-ig, p-cpe:/a:rocky:linux:glibc-langpack-kok, p-cpe:/a:rocky:linux:glibc-langpack-sq, p-cpe:/a:rocky:linux:glibc-langpack-bhb, p-cpe:/a:rocky:linux:glibc-langpack-miq, p-cpe:/a:rocky:linux:glibc-langpack-om, p-cpe:/a:rocky:linux:glibc-langpack-so, p-cpe:/a:rocky:linux:libnsl-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-ckb, p-cpe:/a:rocky:linux:glibc-gconv-extra, p-cpe:/a:rocky:linux:glibc-langpack-gez, p-cpe:/a:rocky:linux:glibc-langpack-mjw, p-cpe:/a:rocky:linux:glibc-langpack-raj, p-cpe:/a:rocky:linux:glibc-langpack-sv, p-cpe:/a:rocky:linux:glibc-langpack-fur, p-cpe:/a:rocky:linux:glibc-langpack-ky, p-cpe:/a:rocky:linux:glibc-langpack-ug, p-cpe:/a:rocky:linux:glibc-langpack-cv, p-cpe:/a:rocky:linux:glibc-langpack-gu, p-cpe:/a:rocky:linux:glibc-langpack-ps, p-cpe:/a:rocky:linux:glibc-langpack-gv, p-cpe:/a:rocky:linux:glibc-langpack-lg, p-cpe:/a:rocky:linux:glibc-langpack-de, p-cpe:/a:rocky:linux:glibc-langpack-mg, p-cpe:/a:rocky:linux:glibc-langpack-tl, p-cpe:/a:rocky:linux:glibc-langpack-tt, p-cpe:/a:rocky:linux:glibc-langpack-bg, p-cpe:/a:rocky:linux:glibc-langpack-the, p-cpe:/a:rocky:linux:glibc-langpack-lo, p-cpe:/a:rocky:linux:glibc-langpack-dsb, p-cpe:/a:rocky:linux:glibc-langpack-byn, p-cpe:/a:rocky:linux:glibc-langpack-to, p-cpe:/a:rocky:linux:glibc-langpack-gl, p-cpe:/a:rocky:linux:glibc-langpack-ms, p-cpe:/a:rocky:linux:glibc-langpack-tk, p-cpe:/a:rocky:linux:glibc-langpack-dz, p-cpe:/a:rocky:linux:glibc-langpack-xh, p-cpe:/a:rocky:linux:glibc-langpack-bi, p-cpe:/a:rocky:linux:glibc-langpack-fa, p-cpe:/a:rocky:linux:glibc-common-debuginfo, p-cpe:/a:rocky:linux:glibc-static, p-cpe:/a:rocky:linux:glibc-langpack-os, p-cpe:/a:rocky:linux:glibc-benchtests-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-ko, p-cpe:/a:rocky:linux:glibc-langpack-ss, p-cpe:/a:rocky:linux:glibc-langpack-syr, p-cpe:/a:rocky:linux:nss_db-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-dv, p-cpe:/a:rocky:linux:glibc-langpack-id, p-cpe:/a:rocky:linux:glibc-langpack-hne, p-cpe:/a:rocky:linux:glibc-debugsource, p-cpe:/a:rocky:linux:glibc-langpack-lv, p-cpe:/a:rocky:linux:glibc-langpack-mni, p-cpe:/a:rocky:linux:glibc-langpack-my, p-cpe:/a:rocky:linux:glibc-langpack-pt, p-cpe:/a:rocky:linux:glibc-langpack-zh, p-cpe:/a:rocky:linux:glibc-langpack-cy, p-cpe:/a:rocky:linux:glibc-langpack-km, p-cpe:/a:rocky:linux:glibc-langpack-ml, p-cpe:/a:rocky:linux:glibc-langpack-nr, p-cpe:/a:rocky:linux:glibc-langpack-sah, p-cpe:/a:rocky:linux:nss_hesiod-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-ber, p-cpe:/a:rocky:linux:glibc-langpack-zgh, p-cpe:/a:rocky:linux:glibc-langpack-fy, p-cpe:/a:rocky:linux:glibc-langpack-sid, p-cpe:/a:rocky:linux:glibc-langpack-ayc, p-cpe:/a:rocky:linux:glibc-langpack-wae, p-cpe:/a:rocky:linux:glibc-langpack-shs

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/29/2026

Vulnerability Publication Date: 3/20/2026

Reference Information

CVE: CVE-2026-4437, CVE-2026-4438