SB2017031710 - Integer overflow in gtk-vnc (Alpine package)
Published: March 17, 2017
Security Bulletin ID
SB2017031710
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer overflow (CVE-ID: CVE-2017-5885)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
Multiple integer overflows in the (1) vnc_connection_server_message and (2) vnc_color_map_set functions in gtk-vnc before 0.7.0 allow remote servers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving SetColorMapEntries, which triggers a buffer overflow.Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=e313d76ea818c7a44343d3b19d73a1cc69ab1040
- https://git.alpinelinux.org/aports/commit/?id=4324d35c335ce77fe8b3f1d862354b755d7c5f4e
- https://git.alpinelinux.org/aports/commit/?id=d7ba0e189fccc1057d2f2de3022b723e8a58a528
- https://git.alpinelinux.org/aports/commit/?id=d065be83c388f73c3ec32b0cf07194a5000fdc39