SB2019050213 - Out-of-bounds read in Linux kernel ipv4
Published: May 2, 2019
Security Bulletin ID
SB2019050213
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) Out-of-bounds read (CVE-ID: CVE-2019-11683)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to an out-of-bounds read error within the udp_gro_receive_segment() function in net/ipv4/udp_offload.c. A remote non-authenticated attacker can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://www.spinics.net/lists/netdev/msg568315.html
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=4dd2b82d5adfbe0b1587ccad7a8f76d826120f37
- http://www.openwall.com/lists/oss-security/2019/05/02/1
- http://www.securityfocus.com/bid/108142
- http://www.openwall.com/lists/oss-security/2019/05/05/4
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.13
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7CYLTCIRTKUB4R2TLLUYPZLDQL44OBG/
- https://usn.ubuntu.com/3979-1/
- https://security.netapp.com/advisory/ntap-20190517-0002/
- https://support.f5.com/csp/article/K69550896