SB2016120813 - Gentoo update for OpenJPEG

Description

This security bulletin contains information about 6 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2015-8871)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing unknown vectors. A remote attackers can have unspecified impact.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

2) Heap-based buffer overflow (CVE-ID: CVE-2016-1923)

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

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the opj_j2k_update_image_data function in OpenJpeg 2016.1.18. A remote attacker can use a crafted JPEG 2000 image. to 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.

3) Buffer overflow (CVE-ID: CVE-2016-1924)

The vulnerability allows a remote attacker to perform a denial-of-service attack.

The vulnerability exists due to a boundary error in the opj_tgt_reset function. A remote attacker can create a specially crafted JPEG 2000 image, trick the victim into opening it, trigger memory corruption and perform a denial-of-service attack.

4) Buffer overflow (CVE-ID: CVE-2016-3182)

The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.

The color_esycc_to_rgb function in bin/common/color.c in OpenJPEG before 2.1.1 allows attackers to cause a denial of service (memory corruption) via a crafted jpeg 2000 file.

5) Out-of-bounds read (CVE-ID: CVE-2016-3183)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the sycc422_t_rgb() function in common/color.c. A remote attacker can create a specially crafted JPEG 2000 image, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

6) NULL pointer dereference (CVE-ID: CVE-2016-7445)

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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via vectors involving the variable s.

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/glsa/201612-26