Protect yourself against future threats.
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2024.2193
USN-6727-1: NSS vulnerabilities
11 April 2024
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: NSS
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2023-4421 CVE-2023-6135 CVE-2023-5388
Original Bulletin:
https://ubuntu.com/security/notices/USN-6727-1
Comment: CVSS (Max): 6.5 CVE-2023-5388 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
CVSS Source: [Red Hat], Ubuntu
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- --------------------------BEGIN INCLUDED TEXT--------------------
USN-6727-1: NSS vulnerabilities
10 April 2024
Several security issues were fixed in NSS.
Releases
o Ubuntu 23.10
o Ubuntu 22.04 LTS
o Ubuntu 20.04 LTS
Packages
o nss - Network Security Service library
Details
It was discovered that NSS incorrectly handled padding when checking PKCS#1
certificates. A remote attacker could possibly use this issue to perform
Bleichenbacher-like attacks and recover private data. This issue only
affected Ubuntu 20.04 LTS. ( CVE-2023-4421 )
It was discovered that NSS had a timing side-channel when performing RSA
decryption. A remote attacker could possibly use this issue to recover
private data. ( CVE-2023-5388 )
It was discovered that NSS had a timing side-channel when using certain
NIST curves. A remote attacker could possibly use this issue to recover
private data. ( CVE-2023-6135 )
The NSS package contained outdated CA certificates. This update refreshes
the NSS package to version 3.98 which includes the latest CA certificate
bundle and other security improvements.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 23.10
o libnss3 - 2:3.98-0ubuntu0.23.10.1
Ubuntu 22.04
o libnss3 - 2:3.98-0ubuntu0.22.04.1
Ubuntu 20.04
o libnss3 - 2:3.98-0ubuntu0.20.04.1
This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.
References
o CVE-2023-5388
o CVE-2023-6135
o CVE-2023-4421
Related notices
o USN-6703-1 : firefox-locale-csb, firefox-locale-nb, firefox-locale-fy,
firefox-locale-is, firefox-locale-sr, firefox-mozsymbols,
firefox-locale-hu, firefox-locale-he, firefox-locale-af, firefox-locale-gd,
firefox-locale-cy, firefox-locale-ast, firefox-locale-ko,
firefox-locale-da, firefox-locale-szl, firefox-locale-eu,
firefox-locale-it, firefox-locale-bs, firefox-locale-pa, firefox-locale-gn,
firefox-locale-fa, firefox-locale-km, firefox-locale-eo, firefox-locale-pt,
firefox-locale-hsb, firefox-locale-zh-hans, firefox-locale-sk,
firefox-locale-ne, firefox-locale-en, firefox-locale-ca, firefox-locale-mn,
firefox-locale-as, firefox-locale-sq, firefox-locale-zh-hant, firefox,
firefox-locale-nn, firefox-locale-ga, firefox-locale-ur, firefox-locale-bg,
firefox-locale-hi, firefox-locale-kk, firefox-locale-uz, firefox-locale-lv,
firefox-locale-ja, firefox-locale-cak, firefox-locale-mai,
firefox-locale-el, firefox-locale-vi, firefox-geckodriver,
firefox-locale-nso, firefox-locale-id, firefox-locale-be,
firefox-locale-tr, firefox-locale-ka, firefox-locale-hr, firefox-locale-an,
firefox-locale-lg, firefox-locale-tg, firefox-locale-or, firefox-locale-sl,
firefox-locale-hy, firefox-locale-pl, firefox-locale-nl, firefox-locale-sv,
firefox-locale-ru, firefox-locale-uk, firefox-locale-mr, firefox-locale-fr,
firefox-locale-es, firefox-locale-br, firefox-locale-ro,
firefox-locale-kab, firefox-locale-ms, firefox-locale-gu,
firefox-locale-zu, firefox-locale-te, firefox-dev, firefox-locale-ml,
firefox-locale-xh, firefox-locale-et, firefox-locale-cs, firefox-locale-kn,
firefox-locale-fi, firefox-locale-gl, firefox-locale-bn, firefox-locale-sw,
firefox-locale-mk, firefox-locale-oc, firefox-locale-lt, firefox-locale-ar,
firefox-locale-si, firefox-locale-ku, firefox-locale-ia, firefox-locale-th,
firefox-locale-az, firefox-locale-my, firefox-locale-ta, firefox-locale-de
o USN-6717-1 : thunderbird-locale-ms, thunderbird-locale-cy,
thunderbird-locale-fy, thunderbird-locale-kab, thunderbird-locale-zh-tw,
xul-ext-gdata-provider, thunderbird-locale-cak, thunderbird-locale-en-gb,
thunderbird-locale-ta, thunderbird-locale-ja, thunderbird-locale-pa-in,
thunderbird-locale-pt, thunderbird-locale-ro, thunderbird-locale-ga,
thunderbird-locale-ru, thunderbird-locale-zh-hans, thunderbird-locale-ast,
thunderbird-locale-he, thunderbird-locale-kk, thunderbird-locale-da,
thunderbird-locale-id, thunderbird-locale-af, thunderbird-locale-fr,
thunderbird-locale-gl, thunderbird-locale-pt-pt, thunderbird-locale-el,
thunderbird-locale-ca, thunderbird-gnome-support, thunderbird-locale-uk,
thunderbird-mozsymbols, thunderbird-locale-lt, thunderbird-locale-lv,
thunderbird-locale-hr, thunderbird-locale-eu, thunderbird-locale-zh-cn,
thunderbird-locale-zh-hant, thunderbird-locale-sl, thunderbird-locale-gd,
thunderbird-locale-tr, thunderbird-locale-vi, xul-ext-calendar-timezones,
thunderbird-locale-es-es, thunderbird-dev, xul-ext-lightning,
thunderbird-locale-bn-bd, thunderbird-locale-nb-no, thunderbird-locale-sq,
thunderbird-locale-sk, thunderbird-locale-th, thunderbird-locale-sr,
thunderbird-locale-bg, thunderbird-locale-be, thunderbird-locale-es-ar,
thunderbird-locale-nl, thunderbird-locale-nn-no, thunderbird-locale-it,
thunderbird-locale-hu, thunderbird-locale-nb, thunderbird-locale-bn,
thunderbird-locale-et, thunderbird-locale-ta-lk, thunderbird,
thunderbird-locale-fi, thunderbird-locale-cs, thunderbird-locale-fy-nl,
thunderbird-locale-ko, thunderbird-locale-si, thunderbird-locale-dsb,
thunderbird-locale-en-us, thunderbird-locale-pl, thunderbird-locale-fa,
thunderbird-locale-ga-ie, thunderbird-locale-sv-se, thunderbird-locale-mk,
thunderbird-locale-nn, thunderbird-locale-is, thunderbird-locale-ka,
thunderbird-locale-hsb, thunderbird-locale-pt-br, thunderbird-locale-pa,
thunderbird-locale-en, thunderbird-locale-br, thunderbird-locale-ar,
thunderbird-locale-de, thunderbird-locale-sv, thunderbird-locale-hy,
thunderbird-locale-uz, thunderbird-locale-rm, thunderbird-locale-es
o USN-6562-1 : firefox-locale-csb, firefox-locale-nb, firefox-locale-fy,
firefox-locale-is, firefox-locale-sr, firefox-mozsymbols,
firefox-locale-hu, firefox-locale-he, firefox-locale-af, firefox-locale-gd,
firefox-locale-cy, firefox-locale-ast, firefox-locale-ko,
firefox-locale-da, firefox-locale-szl, firefox-locale-eu,
firefox-locale-it, firefox-locale-bs, firefox-locale-pa, firefox-locale-gn,
firefox-locale-fa, firefox-locale-km, firefox-locale-eo, firefox-locale-pt,
firefox-locale-hsb, firefox-locale-zh-hans, firefox-locale-sk,
firefox-locale-ne, firefox-locale-en, firefox-locale-ca, firefox-locale-mn,
firefox-locale-as, firefox-locale-sq, firefox-locale-zh-hant, firefox,
firefox-locale-nn, firefox-locale-ga, firefox-locale-ur, firefox-locale-bg,
firefox-locale-hi, firefox-locale-kk, firefox-locale-uz, firefox-locale-lv,
firefox-locale-ja, firefox-locale-cak, firefox-locale-mai,
firefox-locale-el, firefox-locale-vi, firefox-geckodriver,
firefox-locale-nso, firefox-locale-id, firefox-locale-be,
firefox-locale-tr, firefox-locale-ka, firefox-locale-hr, firefox-locale-an,
firefox-locale-lg, firefox-locale-tg, firefox-locale-or, firefox-locale-sl,
firefox-locale-hy, firefox-locale-pl, firefox-locale-nl, firefox-locale-sv,
firefox-locale-ru, firefox-locale-uk, firefox-locale-mr, firefox-locale-fr,
firefox-locale-es, firefox-locale-br, firefox-locale-ro,
firefox-locale-kab, firefox-locale-ms, firefox-locale-gu,
firefox-locale-zu, firefox-locale-te, firefox-dev, firefox-locale-ml,
firefox-locale-xh, firefox-locale-et, firefox-locale-cs, firefox-locale-kn,
firefox-locale-fi, firefox-locale-gl, firefox-locale-bn, firefox-locale-sw,
firefox-locale-mk, firefox-locale-oc, firefox-locale-lt, firefox-locale-ar,
firefox-locale-si, firefox-locale-ku, firefox-locale-ia, firefox-locale-th,
firefox-locale-az, firefox-locale-my, firefox-locale-ta, firefox-locale-de
- --------------------------END INCLUDED TEXT----------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================