Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2023-40589: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions there is a Global-Buffer-Overflow in the ncrush_decompress function. Feeding crafted input into this function can trigger the overflow which has only been shown to cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this issue. CVE-2023-40569: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Write in the `progressive_decompress` function. This issue is likely down to incorrect calculations of the `nXSrc` and `nYSrc` variables. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. there are no known workarounds for this vulnerability. CVE-2023-40567: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Write in the `clear_decompress_bands_data` function in which there is no offset validation. Abuse of this vulnerability may lead to an out of bounds write. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. there are no known workarounds for this vulnerability. CVE-2023-40188: NOTE: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9w28-wwj5-p4xq CVE-2023-40186: NOTE: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hcj4-3c3r-5j3v CVE-2023-40181: NOTE: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mxp4-rx7x-h2g8 CVE-2023-39356: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function `gdi_multi_opaque_rect`. In particular there is no code to validate if the value `multi_opaque_rect->numRectangles` is less than 45. Looping through `multi_opaque_rect->`numRectangles without proper boundary checks can lead to Out-of-Bounds Read errors which will likely lead to a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability. CVE-2023-39354: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Read in the `nsc_rle_decompress_data` function. The Out-Of-Bounds Read occurs because it processes `context->Planes` without checking if it contains data of sufficient length. Should an attacker be able to leverage this vulnerability they may be able to cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability. CVE-2023-39353: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability. CVE-2023-39351: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of FreeRDP are subject to a Null Pointer Dereference leading a crash in the RemoteFX (rfx) handling. Inside the `rfx_process_message_tileset` function, the program allocates tiles using `rfx_allocate_tiles` for the number of numTiles. If the initialization process of tiles is not completed for various reasons, tiles will have a NULL pointer. Which may be accessed in further processing and would cause a program crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability. CVE-2023-39350: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. This issue affects Clients only. Integer underflow leading to DOS (e.g. abort due to `WINPR_ASSERT` with default compilation flags). When an insufficient blockLen is provided, and proper length validation is not performed, an Integer Underflow occurs, leading to a Denial of Service (DOS) vulnerability. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | freerdp | 2:2.11.1-1.amzn2.0.1 |
| Amazon Linux · 2 | freerdp-debuginfo | 2:2.11.1-1.amzn2.0.1 |
| Amazon Linux · 2 | freerdp-devel | 2:2.11.1-1.amzn2.0.1 |
| Amazon Linux · 2 | freerdp-libs | 2:2.11.1-1.amzn2.0.1 |
| Amazon Linux · 2 | libwinpr | 2:2.11.1-1.amzn2.0.1 |
| Amazon Linux · 2 | libwinpr-devel | 2:2.11.1-1.amzn2.0.1 |
Vulnerabilities 11
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Medium 6.5
IntegerOverflow leading to Out-Of-Bound Write Vulnerability in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an IntegerOverflow leading to Out-Of-Bound Write Vulnerability in the `gdi_CreateSurface` function. This issue affects F…
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Medium 6.5
Out-Of-Bounds Write in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Write in the `clear_decompress_bands_data` function in which there is no offset validation. Abuse of th…
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Medium 6.5
Out-Of-Bounds Write in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Write in the `progressive_decompress` function. This issue is likely down to incorrect calculations of …
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Medium 5.9
Incorrect offset calculation leading to denial of service in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. This issue affects Clients only. Integer underflow leading to DOS (e.g. abort due to `WINPR_ASSERT` with default compilation flags). When an insufficient…
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Medium 5.9
FreeRDP Out-Of-Bounds Read in nsc_rle_decompress_data
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Read in the `nsc_rle_decompress_data` function. The Out-Of-Bounds Read occurs because it processes `con…
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Medium 5.3
FreeRDP Null Pointer Dereference leading denial of service
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of FreeRDP are subject to a Null Pointer Dereference leading a crash in the RemoteFX (rfx) handling. Inside the `rfx_process_message_ti…
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Medium 5.3
Missing offset validation leading to Out Of Bound Read in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset valida…
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Medium 5.3
Missing offset validation leading to Out-of-Bounds Read in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function `gdi_multi_opaque_rect`. In particular there is no code…
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Medium 5.3
Integer-Underflow leading to Out-Of-Bound Read in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Integer-Underflow leading to Out-Of-Bound Read in the `zgfx_decompress_segment` function. In the context of `CopyMemo…
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Medium 5.3
Out-Of-Bounds Read in FreeRDP
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Read in the `general_LumaToYUV444` function. This Out-Of-Bounds Read occurs because processing is done …
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Medium 4.3
FreeRDP Global-Buffer-Overflow in ncrush_decompress
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions there is a Global-Buffer-Overflow in the ncrush_decompress function. Feeding crafted input into this function can trigger the overfl…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-39350.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-39351.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-39353.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-39354.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-39356.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-40181.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-40186.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-40188.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-40567.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-40569.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2023-40589.html