[SECURITY] [DSA 4992-1] php7.4 security update

2021-10-2520:20:43

lists.debian.org

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

JSON

Debian Security Advisory DSA-4992-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
October 25, 2021 https://www.debian.org/security/faq

Package : php7.4
CVE ID : CVE-2021-21703
Debian Bug : 997003

An out-of-bounds read and write flaw was discovered in the PHP-FPM code,
which could result in escalation of privileges from local unprivileged
user to the root user.

For the stable distribution (bullseye), this problem has been fixed in
version 7.4.25-1+deb11u1.

We recommend that you upgrade your php7.4 packages.

For the detailed security status of php7.4 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/php7.4

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

OSVersionArchitecturePackageVersionFilename
Debian11s390xphp7.4-opcache-dbgsym< 7.4.25-1+deb11u1php7.4-opcache-dbgsym_7.4.25-1+deb11u1_s390x.deb
Debian11ppc64elphp7.4-sybase< 7.4.25-1+deb11u1php7.4-sybase_7.4.25-1+deb11u1_ppc64el.deb
Debian9armhflibapache2-mod-php7.0< 7.0.33-0+deb9u12libapache2-mod-php7.0_7.0.33-0+deb9u12_armhf.deb
Debian11ppc64elphp7.4-dba-dbgsym< 7.4.25-1+deb11u1php7.4-dba-dbgsym_7.4.25-1+deb11u1_ppc64el.deb
Debian10mips64elphp7.3-mysql< 7.3.31-1~deb10u1php7.3-mysql_7.3.31-1~deb10u1_mips64el.deb
Debian11mips64elphp7.4-readline-dbgsym< 7.4.25-1+deb11u1php7.4-readline-dbgsym_7.4.25-1+deb11u1_mips64el.deb
Debian10ppc64elphp7.3-gd< 7.3.31-1~deb10u1php7.3-gd_7.3.31-1~deb10u1_ppc64el.deb
Debian10amd64php7.3-cli< 7.3.31-1~deb10u1php7.3-cli_7.3.31-1~deb10u1_amd64.deb
Debian10i386php7.3-fpm-dbgsym< 7.3.31-1~deb10u1php7.3-fpm-dbgsym_7.3.31-1~deb10u1_i386.deb
Debian10s390xphp7.3-gd< 7.3.31-1~deb10u1php7.3-gd_7.3.31-1~deb10u1_s390x.deb

OS	Version	Architecture	Package	Version	Filename
Debian	11	s390x	php7.4-opcache-dbgsym	< 7.4.25-1+deb11u1	php7.4-opcache-dbgsym_7.4.25-1+deb11u1_s390x.deb
Debian	11	ppc64el	php7.4-sybase	< 7.4.25-1+deb11u1	php7.4-sybase_7.4.25-1+deb11u1_ppc64el.deb
Debian	9	armhf	libapache2-mod-php7.0	< 7.0.33-0+deb9u12	libapache2-mod-php7.0_7.0.33-0+deb9u12_armhf.deb
Debian	11	ppc64el	php7.4-dba-dbgsym	< 7.4.25-1+deb11u1	php7.4-dba-dbgsym_7.4.25-1+deb11u1_ppc64el.deb
Debian	10	mips64el	php7.3-mysql	< 7.3.31-1~deb10u1	php7.3-mysql_7.3.31-1~deb10u1_mips64el.deb
Debian	11	mips64el	php7.4-readline-dbgsym	< 7.4.25-1+deb11u1	php7.4-readline-dbgsym_7.4.25-1+deb11u1_mips64el.deb
Debian	10	ppc64el	php7.3-gd	< 7.3.31-1~deb10u1	php7.3-gd_7.3.31-1~deb10u1_ppc64el.deb
Debian	10	amd64	php7.3-cli	< 7.3.31-1~deb10u1	php7.3-cli_7.3.31-1~deb10u1_amd64.deb
Debian	10	i386	php7.3-fpm-dbgsym	< 7.3.31-1~deb10u1	php7.3-fpm-dbgsym_7.3.31-1~deb10u1_i386.deb
Debian	10	s390x	php7.3-gd	< 7.3.31-1~deb10u1	php7.3-gd_7.3.31-1~deb10u1_s390x.deb