Out-of-bounds read in Linux kernel - CVE-2019-11683
Published: May 2, 2019 / Updated: January 19, 2023
Vulnerability identifier: #VU90371
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-11683
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
Arch Linux
Fedora
Linux
linux-zen
kernel-tools
kernel
Arch Linux
Fedora
Linux
linux-zen
kernel-tools
kernel
How to mitigate CVE-2019-11683
Install update from vendor's website.
Linux kernel - update to 5.0.13
Linux - update to 5.0.12.a rch2-1
linux-zen - update to 5.0.12.zen2-1
kernel-tools - update to 5.0.12-300.fc30
kernel - update to 5.0.13-300.fc30
Linux - update to 5.0.12.a rch2-1
linux-zen - update to 5.0.12.zen2-1
kernel-tools - update to 5.0.12-300.fc30
kernel - update to 5.0.13-300.fc30
External 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