Bug 1736255

Summary: freetds: Heap overflow in FreeTDS if UDT type is used with protocol 5.0
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: carnil, dmitry
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
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Clone Of: Environment:
Last Closed: 2019-08-01 16:18:48 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1728191, 1728192, 1736256, 1736257    
Bug Blocks:    

Description Laura Pardo 2019-08-01 15:33:29 UTC
A vulnerability was found in FreeTDS since version 0.95. By downgrading to protocol 5.0 and sending a UDT type, a malicious server could cause a heap overflow.


Upstream Patch:

Comment 1 Laura Pardo 2019-08-01 15:33:49 UTC
Created freetds tracking bugs for this issue:

Affects: epel-7 [bug 1736257]
Affects: fedora-all [bug 1736256]

Comment 2 Dmitry Butskoy 2019-08-01 16:18:48 UTC
Already fixed in freetds-1.1.11,the patch mentoned above (https://github.com/FreeTDS/freetds/commit/0df4eb82a0e3ff844e373d7c9f9c6c813925e2ac ) applied upstream in this version.

Comment 3 Salvatore Bonaccorso 2019-11-02 19:30:20 UTC
FTR, this is CVE-2019-13508