Bug 1311992 (CVE-2015-5726) - CVE-2015-5726 botan: crash in BER decoder
Summary: CVE-2015-5726 botan: crash in BER decoder
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2015-5726
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-02-25 13:08 UTC by Andrej Nemec
Modified: 2021-02-17 04:17 UTC (History)
1 user (show)

Fixed In Version: botan 1.11.19, botan 1.10.10
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-01-30 09:49:54 UTC
Embargoed:

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Description Andrej Nemec 2016-02-25 13:08:10 UTC 
The BER decoder would crash due to reading from offset 0 of an empty vector if it encountered a BIT STRING which did not contain any data at all. This can be used to easily crash applicatons reading untrusted ASN.1 data, but does not seem exploitable for code execution.

External references:

http://botan.randombit.net/security.html
Comment 1 Thomas Moschny 2016-04-29 18:27:12 UTC 
CVE-2015-5726 has been fixed in 1.8.15 and 1.10.10.

As of today, we have:

   el5: botan-1.8.15-1
   el6: botan-1.8.15-1
 epel7: botan-1.10.12-1
   f22: botan-1.10.12-1
   f23: botan-1.10.12-1
   f24: botan-1.10.12-1
master: botan-1.10.12-1

So this bug can be closed imho.
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