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Symantec rar Decomposer Engine (Multiple Products) - Out-of-Bounds Read / Out-of-Bounds Write
| Reporter | Title | Published | Views | Family All 27 |
|---|---|---|---|---|
 | CVE-2016-5309 | 21 Sep 201600:00 | – | circl |
| CVE-2016-5310 | 21 Sep 201600:00 | – | circl |
 | Memory Corruption Vulnerability in Multiple Symantec Products (CNVD-2016-08079) | 22 Sep 201600:00 | – | cnvd |
| Memory Corruption Vulnerability in Multiple Symantec Products | 22 Sep 201600:00 | – | cnvd |
 | CVE-2016-5309 | 14 Apr 201718:00 | – | cve |
| CVE-2016-5310 | 14 Apr 201718:00 | – | cve |
 | CVE-2016-5309 | 14 Apr 201718:00 | – | cvelist |
| CVE-2016-5310 | 14 Apr 201718:00 | – | cvelist |
 | EUVD-2016-6260 | 7 Oct 202500:30 | – | euvd |
| EUVD-2016-6261 | 7 Oct 202500:30 | – | euvd |
10
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=867
In issue 810 we pointed out to Symantec that they hadn't updated their unrar based unpacker for years, and it was vulnerable to dozens of publicly documented flaws.
I had expected Symantec to rebase on 5.4.2 (the latest version as of this writing), but they appear to have just backported fixes for the few issues I sent them.
Here are two known bugs in unrar that are fixed upstream, but not in Symantec's ancient code. If they continue to refuse to rebase, this might take a few iterations to shake the bugs out. Sigh.
As in issue 810, these are remote code execution vulnerabilities at the highest possible privilege level.
Proof of Concept:
https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/40405.zip
# 0day.today [2017-12-31] #Data
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21 Sep 2016 00:00Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.08027