SB2024021402 - Ubuntu update for libde265

Description

This security bulletin contains information about 14 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2020-21594)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the put_epel_hv_fallback() function when decoding files. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

2) Heap-based buffer overflow (CVE-ID: CVE-2020-21595)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the mc_luma() function when decoding files. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

3) Buffer overflow (CVE-ID: CVE-2020-21596)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the decode_CABAC_bit() function. A remote attacker can pass a specially crafted file to the application, trigger memory corruption and perform a denial of service (DoS) attack.

4) Heap-based buffer overflow (CVE-ID: CVE-2020-21599)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the de265_image::available_zscan() function. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

5) Heap-based buffer overflow (CVE-ID: CVE-2020-21600)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the put_weighted_pred_avg_16_fallback() function. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

6) Stack-based buffer overflow (CVE-ID: CVE-2020-21601)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the put_qpel_fallback() function. A remote attacker can pass a specially crafted file to the application, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.

7) Heap-based buffer overflow (CVE-ID: CVE-2020-21602)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the put_weighted_bipred_16_fallback() function. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

8) Heap-based buffer overflow (CVE-ID: CVE-2020-21603)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the put_qpel_0_0_fallback_16() function. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

9) Heap-based buffer overflow (CVE-ID: CVE-2020-21604)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the _mm_loadl_epi64() function. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

10) Buffer overflow (CVE-ID: CVE-2020-21605)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the apply_sao_internal() function. A remote attacker can pass a specially crafted file to the application, trigger memory corruption and perform a denial of service (DoS) attack.

11) Heap-based buffer overflow (CVE-ID: CVE-2020-21597)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the mc_chroma() function. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

12) Heap-based buffer overflow (CVE-ID: CVE-2020-21598)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the ff_hevc_put_unweighted_pred_8_sse() function. A remote attacker can pass specially crafted input to the application, trigger a 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.

13) Out-of-bounds write (CVE-ID: CVE-2020-21606)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the put_epel_16_fallback() function. A remote attacker can pass specially crafted input to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

14) Use-after-free (CVE-ID: CVE-2021-36408)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in intrapred.h when decoding file using dec265. A remote attacker can pass a specially crafted file to the application and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-6617-1