SB2020061534 - Gentoo update for FAAD2
Published: June 15, 2020 Updated: June 15, 2020
Breakdown by Severity
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- Critical
Description
This security bulletin contains information about 17 secuirty vulnerabilities.
1) Heap-based buffer overflow (CVE-ID: CVE-2018-19502)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the function excluded_channels() in libfaad/syntax.c. A remote attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Stack-based buffer overflow (CVE-ID: CVE-2018-19503)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the function calculate_gain() in libfaad/sbr_hfadj.c. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) NULL pointer dereference (CVE-ID: CVE-2018-19504)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.1. There is a NULL pointer dereference in ifilter_bank() in libfaad/filtbank.c. A remote attacker can perform a denial of service (DoS) attack.
4) Stack-based buffer underflow (CVE-ID: CVE-2018-20194)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to the calculate_gain function, as defined in the libfaad/sbr_hfadj.c source code file of the affected software, mishandles noise energy level for the G_max <= G case. A local attacker can submit malicious input and trigger a stack-based buffer underflow condition that causes the affected software to crash, resulting in a DoS condition.
5) NULL pointer dereference (CVE-ID: CVE-2018-20195)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to a NULL pointer dereference in ic_predict of libfaad/ic_predict.c. A local attacker can submit malicious input and trigger a segmentation fault that causes the affected software to crash, resulting in a DoS condition.
6) Stack-based buffer overflow (CVE-ID: CVE-2018-20196)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to the calculate_gain function, as defined in the libfaad/sbr_hfadj.c source code file of the affected software, mishandles the S_M array. A local attacker can submit malicious input and trigger a stack-based buffer overflow condition that causes the affected software to crash, resulting in a DoS condition.
7) Stack-based buffer underflow (CVE-ID: CVE-2018-20197)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to the calculate_gain function, as defined in the libfaad/sbr_hfadj.c source code file of the affected software, mishandles noise energy level for the G_max = G case. A local attacker can submit malicious input and trigger a stack-based buffer underflow condition that causes the affected software to crash, resulting in a DoS condition.
8) NULL pointer dereference (CVE-ID: CVE-2018-20198)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to a NULL pointer dereference in ifilter_bank of libfaad/filtbank.c. A local attacker can submit trigger a segmentation fault that causes the affected software to crash, resulting in a DoS condition because adding to windowed output is mishandled in the LONG_START_SEQUENCE case.
9) NULL pointer dereference (CVE-ID: CVE-2018-20199)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to a NULL pointer dereference in ifilter_bank of libfaad/filtbank.c. A local attacker can trigger a segmentation fault that causes the affected software to crash, resulting in a DoS condition because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case.
10) NULL pointer dereference (CVE-ID: CVE-2018-20357)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in sbr_process_channel of libfaad/sbr_dec.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash. A remote attacker can perform a denial of service (DoS) attack.
11) Buffer overflow (CVE-ID: CVE-2018-20358)
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
An invalid memory address dereference was discovered in the lt_prediction function of libfaad/lt_predict.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.
12) Buffer overflow (CVE-ID: CVE-2018-20359)
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
An invalid memory address dereference was discovered in the sbrDecodeSingleFramePS function of libfaad/sbr_dec.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.
13) Buffer overflow (CVE-ID: CVE-2018-20360)
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
An invalid memory address dereference was discovered in the sbr_process_channel function of libfaad/sbr_dec.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.
14) Buffer overflow (CVE-ID: CVE-2018-20361)
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
An invalid memory address dereference was discovered in the hf_assembly function of libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.
15) NULL pointer dereference (CVE-ID: CVE-2018-20362)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash because adding to windowed output is mishandled in the EIGHT_SHORT_SEQUENCE case. A remote attacker can perform a denial of service (DoS) attack.
16) Buffer overflow (CVE-ID: CVE-2019-15296)
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
An issue was discovered in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The faad_resetbits function in libfaad/bits.c is affected by a buffer overflow vulnerability. The number of bits to be read is determined by ld->buffer_size - words*4, cast to uint32. If ld->buffer_size - words*4 is negative, a buffer overflow is later performed via getdword_n(&ld->start[words], ld->bytes_left).
17) Out-of-bounds read (CVE-ID: CVE-2019-6956)
The vulnerability allows a local attacker to cause DoS condition.
The vulnerability exists due to a buffer over-read condition in the ps_mix_phase function, as defined in the libfaad/ps_dec.c source code file. A local attacker can submit a malicious input to the targeted system, trigger a buffer over-read condition and cause the affected application to crash.
Remediation
Install update from vendor's website.