SB2014012002 - Denial of service in SourceForge zsh
Published: January 20, 2014
Security Bulletin ID
SB2014012002
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2014-10071)
CWE-ID: CWE-120 - Buffer overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/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 local attacker to cause DoS condition on the target system.
The weakness exists in the exec.c source code file due to buffer overflow. A local attacker can send long file descriptors (fds), in the >& fd syntax, trigger memory corruption and cause the service to crash.
2) Privilege escalation (CVE-ID: CVE-2014-10070)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to improper security restrictions when initial evaluating the values of imported integer variables. A local attacker can gain elevated privileges.
3) Buffer overflow (CVE-ID: CVE-2014-10072)
CWE-ID: CWE-120 - Buffer overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/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 local unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the utils.c source code file due to buffer overflow. A local attacker can trigger memory corruption and cause the service to crash.
Remediation
Install update from vendor's website.