CVE-2017-17969: Buffer Overflow
First published: Wed Jan 24 2018(Updated: )
Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/p7zip | <=9.20.1~dfsg.1-4.1<=16.02+dfsg-4 | 16.02+dfsg-5 16.02+dfsg-3+deb9u1 9.20.1~dfsg.1-4.1+deb8u3 |
| 7-Zip 7-Zip | <18.00 | |
| 7-zip P7zip | <18.0 | |
| Debian Debian Linux | =7.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| debian/p7zip | 16.02+dfsg-8 16.02+transitional.1 |
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Reference Links
- https://landave.io/2018/01/7-zip-multiple-memory-corruptions-via-rar-and-
- https://security-tracker.debian.org/tracker/CVE-2017-17969
- https://security-tracker.debian.org/tracker/CVE-2018-5996
- https://sourceforge.net/p/p7zip/bugs/_discuss/thread/0920f369/c296/attachment/CVE-2017-17969.patch
- https://sourceforge.net/p/p7zip/bugs/_discuss/thread/0920f369/#2de7
- https://sourceforge.net/p/p7zip/bugs/_discuss/thread/0920f369/#27d7
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888297
- http://www.securitytracker.com/id/1040831
- https://0patch.blogspot.si/2018/02/two-interesting-micropatches-for-7-zip.html
- https://landave.io/2018/01/7-zip-multiple-memory-corruptions-via-rar-and-zip/
- https://lists.debian.org/debian-lts-announce/2018/02/msg00003.html
- https://usn.ubuntu.com/3913-1/
- https://www.debian.org/security/2018/dsa-4104
- https://launchpad.net/bugs/cve/CVE-2017-17969
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17969
- https://nvd.nist.gov/vuln/detail/CVE-2017-17969
- https://ubuntu.com/security/CVE-2017-17969
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2017-17969.
What is the severity of CVE-2017-17969?
The severity of CVE-2017-17969 is high with a score of 7.8.
What is the affected software?
The affected software is 7-Zip before version 18.00 and p7zip.
How can a remote attacker exploit CVE-2017-17969?
A remote attacker can exploit CVE-2017-17969 by sending a crafted ZIP archive, potentially causing a denial of service or executing arbitrary code.
Where can I find more information about CVE-2017-17969?
You can find more information about CVE-2017-17969 at the following references: [link1], [link2], [link3].
- collector/debian-bugs
- alias/CVE-2017-17969
- collector/nvd-index
- collector/launchpad-cve
- source/Launchpad
- agent/type
- agent/author
- agent/first-publish-date
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/weakness
- agent/description
- agent/severity
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/references
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/debian
- vendor/7-zip
- canonical/7-zip 7-zip
- canonical/7-zip p7zip
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/7.0
- version/debian debian linux/8.0
- version/debian debian linux/9.0