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debianDebianDEBIAN:DLA-2670-1:34BC4
HistoryMay 30, 2021 - 12:56 p.m.

[SECURITY] [DLA 2670-1] nginx security update

2021-05-3012:56:20
lists.debian.org
174
nginx
off-by-one
denial of service
arbitrary code
debian 9

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

LOW

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

AI Score

6.8

Confidence

Low

EPSS

0.389

Percentile

97.3%

JSON

Debian LTS Advisory DLA-2670-1 [email protected]
https://www.debian.org/lts/security/ Utkarsh Gupta
May 30, 2021 https://wiki.debian.org/LTS

Package : nginx
Version : 1.10.3-1+deb9u6
CVE ID : CVE-2021-23017
Debian Bug : 989095

Luis Merino, Markus Vervier and Eric Sesterhenn discovered an off-by-one
in Nginx, a high-performance web and reverse proxy server, which could
result in denial of service and potentially the execution of arbitrary
code.

For Debian 9 stretch, this problem has been fixed in version
1.10.3-1+deb9u6.

We recommend that you upgrade your nginx packages.

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

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

OSVersionArchitecturePackageVersionFilename
Debian10mipslibnginx-mod-http-perl-dbgsym< 1.14.2-2+deb10u4libnginx-mod-http-perl-dbgsym_1.14.2-2+deb10u4_mips.deb
Debian10armellibnginx-mod-nchan-dbgsym< 1.14.2-2+deb10u4libnginx-mod-nchan-dbgsym_1.14.2-2+deb10u4_armel.deb
Debian10mipsellibnginx-mod-http-lua< 1.14.2-2+deb10u4libnginx-mod-http-lua_1.14.2-2+deb10u4_mipsel.deb
Debian10mipselnginx-full-dbgsym< 1.14.2-2+deb10u4nginx-full-dbgsym_1.14.2-2+deb10u4_mipsel.deb
Debian10s390xlibnginx-mod-http-ndk-dbgsym< 1.14.2-2+deb10u4libnginx-mod-http-ndk-dbgsym_1.14.2-2+deb10u4_s390x.deb
Debian10armellibnginx-mod-http-perl< 1.14.2-2+deb10u4libnginx-mod-http-perl_1.14.2-2+deb10u4_armel.deb
Debian10armhfnginx-extras< 1.14.2-2+deb10u4nginx-extras_1.14.2-2+deb10u4_armhf.deb
Debian10mipsellibnginx-mod-http-upstream-fair< 1.14.2-2+deb10u4libnginx-mod-http-upstream-fair_1.14.2-2+deb10u4_mipsel.deb
Debian10s390xlibnginx-mod-mail< 1.14.2-2+deb10u4libnginx-mod-mail_1.14.2-2+deb10u4_s390x.deb
Debian10mips64ellibnginx-mod-http-subs-filter< 1.14.2-2+deb10u4libnginx-mod-http-subs-filter_1.14.2-2+deb10u4_mips64el.deb
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CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

LOW

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

AI Score

6.8

Confidence

Low

EPSS

0.389

Percentile

97.3%

JSON
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