In the Linux kernel, the following vulnerability has been resolved:
ASoC: codecs: hdac_hdmi: Validate written enum value
hdac_hdmi_set_pin_port_mux() uses the written enum value to index the
texts array before calling snd_soc_dapm_put_enum_double(), which validates
that the value is within the enum item range.
An out-of-range value can therefore make the driver read past the texts
array before the helper rejects the write. Move the lookup after the helper
has accepted the value.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
References 7
https://git.kernel.org/stable/c/0b08baeccdcf52fad328ad645f5b4fbee04eea34
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/216336418c007c4b44c650acf2fd3d2de5bb81e8
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7f02e9064b6f84e7f93c72f134306271eb4f7de4
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8cbf24714d6b3f553fc959632c9781176a73a9a7
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9131e4b023e0db5764680034bdc94aeae0b0f33d
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bc464a6a9e352daa17b1636c090cf3185710b9a0
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d8961b5c7889b6ecc00f1409d36826df1665df27
416baaa9-dc9f-4396-8d5f-8c081fb06d67