SB2026052723 - Anolis OS update for jq
Published: May 27, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2026-41257)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to integer overflow in stack_reallocate in the jq VM stack when processing deeply nested generator forks. A local user can supply crafted jq input to trigger signed integer overflow and abort the process to cause a denial of service.
In the observed case, the wrapped allocation size causes memory allocation failure and process abort. A small positive truncation may also lead to a wild memmove write before the buffer.
2) Out-of-bounds write (CVE-ID: CVE-2026-43894)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds write in decNumber D2U() macro in decNumberFromString when processing an extremely large decimal string via tonumber. A remote attacker can supply a specially crafted number string to cause a denial of service.
The issue is triggered by signed integer overflow and is reachable through tonumber on a string built via the multiplication operator rather than through raw JSON number parsing.
3) Uncontrolled Recursion (CVE-ID: CVE-2026-43896)
CWE-ID: CWE-674 - Uncontrolled Recursion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to uncontrolled recursion in the "jv_object_merge_recursive()" function in src/jv.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.