SB2020051288 - Gentoo update for Long Range ZIP
Published: May 12, 2020 Updated: May 13, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 secuirty vulnerabilities.
1) Division by zero (CVE-ID: CVE-2017-8842)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to divide-by-zero error within The bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631. A remote attacker can perform a denial of service (divide-by-zero error and application crash) via a crafted archive.
2) NULL pointer dereference (CVE-ID: CVE-2017-8843)
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 a crafted archive.
3) Heap-based buffer overflow (CVE-ID: CVE-2017-8844)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in The read_1g function in stream.c in liblrzip.so in lrzip 0.631. A remote attacker can use a crafted archive. 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.
4) Out-of-bounds read (CVE-ID: CVE-2017-8845)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The lzo1x_decompress function in lzo1x_d.ch in LZO 2.08, as used in lrzip 0.631, allows remote attackers to cause a denial of service (invalid memory read and application crash) via a crafted archive.
5) Use-after-free (CVE-ID: CVE-2017-8846)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing a crafted archive. A remote attackers can cause a denial of service (use-after-free and application crash).
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
6) NULL pointer dereference (CVE-ID: CVE-2017-8847)
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 a crafted archive.
7) Buffer overflow (CVE-ID: CVE-2017-9928)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In lrzip 0.631, a stack buffer overflow was found in the function get_fileinfo in lrzip.c:979, which allows attackers to cause a denial of service via a crafted file.
8) Buffer overflow (CVE-ID: CVE-2017-9929)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In lrzip 0.631, a stack buffer overflow was found in the function get_fileinfo in lrzip.c:1074, which allows attackers to cause a denial of service via a crafted file.
Remediation
Install update from vendor's website.