CVE-2016-9296
Published: 12 November 2016
A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.
Notes
Author | Note |
---|---|
sbeattie | crasher example is in sourceforge bug report |
Priority
Status
Package | Release | Status |
---|---|---|
p7zip Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Not vulnerable
(16.02+dfsg-6)
|
|
precise |
Ignored
(end of life)
|
|
trusty |
Not vulnerable
(code not present)
|
|
upstream |
Released
(16.02+dfsg-2)
|
|
xenial |
Not vulnerable
(code not present)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |