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debianDebianDEBIAN:DSA-4104-1:8BF62
HistoryFeb 04, 2018 - 8:42 p.m.

[SECURITY] [DSA 4104-1] p7zip security update

2018-02-0420:42:26
lists.debian.org
8

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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


Debian Security Advisory DSA-4104-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
February 04, 2018 https://www.debian.org/security/faq


Package : p7zip
CVE ID : CVE-2017-17969
Debian Bug : 888297

'landave' discovered a heap-based buffer overflow vulnerability in the
NCompress::NShrink::CDecoder::CodeReal method in p7zip, a 7zr file
archiver with high compression ratio. A remote attacker can take
advantage of this flaw to cause a denial-of-service or, potentially the
execution of arbitrary code with the privileges of the user running
p7zip, if a specially crafted shrinked ZIP archive is processed.

For the oldstable distribution (jessie), this problem has been fixed
in version 9.20.1~dfsg.1-4.1+deb8u3.

For the stable distribution (stretch), this problem has been fixed in
version 16.02+dfsg-3+deb9u1.

We recommend that you upgrade your p7zip packages.

For the detailed security status of p7zip please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/p7zip

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]

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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

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