Debian LTS: Security Advisory for freerdp (DLA-2356-1)

Published: 2020-08-30 03:00:47
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P

Summary:
The remote host is missing an update for the 'freerdp' Linux Distribution Package(s) announced via the DLA-2356-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
Several vulnerabilities have been reported against FreeRDP, an Open Source server and client implementation of the Microsoft RDP protocol. CVE-2014-0791 An integer overflow in the license_read_scope_list function in libfreerdp/core/license.c in FreeRDP allowed remote RDP servers to cause a denial of service (application crash) or possibly have unspecified other impact via a large ScopeCount value in a Scope List in a Server License Request packet. CVE-2020-11042 In FreeRDP there was an out-of-bounds read in update_read_icon_info. It allowed reading an attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. This could have been used to crash the client or store information for later retrieval. CVE-2020-11045 In FreeRDP there was an out-of-bound read in in update_read_bitmap_data that allowed client memory to be read to an image buffer. The result displayed on screen as colour. CVE-2020-11046 In FreeRDP there was a stream out-of-bounds seek in update_read_synchronize that could have lead to a later out-of-bounds read. CVE-2020-11048 In FreeRDP there was an out-of-bounds read. It only allowed to abort a session. No data extraction was possible. CVE-2020-11058 In FreeRDP, a stream out-of-bounds seek in rdp_read_font_capability_set could have lead to a later out-of-bounds read. As a result, a manipulated client or server might have forced a disconnect due to an invalid data read. CVE-2020-11521 libfreerdp/codec/planar.c in FreeRDP had an Out-of-bounds Write. CVE-2020-11522 libfreerdp/gdi/gdi.c in FreeRDP had an Out-of-bounds Read. CVE-2020-11523 libfreerdp/gdi/region.c in FreeRDP had an Integer Overflow. CVE-2020-11525 libfreerdp/cache/bitmap.c in FreeRDP had an Out of bounds read. CVE-2020-11526 libfreerdp/core/update.c in FreeRDP had an Out-of-bounds Read. CVE-2020-13396 An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c. CVE-2020-13397 An out-of-bounds (OOB) read vulnerability has been detected in security_fips_decrypt in libfreerdp/core/security.c due to an uninitialized value. CVE-2020-13398 An out-of-bounds (OOB) write vulnerability has been detected in crypto_rsa_common in libfreerdp/crypto/crypto.c.

Affected Versions:
'freerdp' Linux Distribution Package(s) on Debian Linux.

Recommendations:
For Debian 9 stretch, these problems have been fixed in version 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u4. We recommend that you upgrade your freerdp Linux Distribution Packages.

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2014-0791
https://nvd.nist.gov/vuln/detail/CVE-2020-11042
https://nvd.nist.gov/vuln/detail/CVE-2020-11045
https://nvd.nist.gov/vuln/detail/CVE-2020-11046
https://nvd.nist.gov/vuln/detail/CVE-2020-11048
https://nvd.nist.gov/vuln/detail/CVE-2020-11058
https://nvd.nist.gov/vuln/detail/CVE-2020-11521
https://nvd.nist.gov/vuln/detail/CVE-2020-11522
https://nvd.nist.gov/vuln/detail/CVE-2020-11523
https://nvd.nist.gov/vuln/detail/CVE-2020-11525
https://nvd.nist.gov/vuln/detail/CVE-2020-11526
https://nvd.nist.gov/vuln/detail/CVE-2020-13396
https://nvd.nist.gov/vuln/detail/CVE-2020-13397
https://nvd.nist.gov/vuln/detail/CVE-2020-13398

References:

https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html
https://security-tracker.debian.org/tracker/DLA-2356-1

Severity
Medium
CVSS Score
6.8
Published
2020-08-30
Modified
2020-08-31
Category
Debian Local Security Checks

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