Out-of-bounds Write Affecting p7zip package, versions <9.20.1~dfsg.1-4.2ubuntu0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-P7ZIP-282290
- published30 Jan 2018
- disclosed30 Jan 2018
Introduced: 30 Jan 2018
CVE-2017-17969 (opens in a new tab)How to fix?
Upgrade Ubuntu:16.04 p7zip to version 9.20.1~dfsg.1-4.2ubuntu0.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream p7zip package and not the p7zip package as distributed by Ubuntu.
See How to fix? for Ubuntu:16.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-17969
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17969
- https://www.debian.org/security/2018/dsa-4104
- https://lists.debian.org/debian-lts-announce/2018/02/msg00003.html
- https://security-tracker.debian.org/tracker/CVE-2017-17969
- 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/
- http://www.securitytracker.com/id/1040831
- https://usn.ubuntu.com/3913-1/
- https://github.com/p7zip-project/p7zip/issues/7