MGASA-2019-0195

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Source
https://advisories.mageia.org/MGASA-2019-0195.html
Import Source
https://advisories.mageia.org/MGASA-2019-0195.json
JSON Data
https://api.test.osv.dev/v1/vulns/MGASA-2019-0195
Related
Published
2019-06-21T01:07:01Z
Modified
2022-02-17T18:21:47Z
Summary
Updated kernel packages fix security vulnerability
Details

This kernel update is based on the upstream 4.14.127 and fixes at least the following security issues:

Jonathan Looney discovered that it is possible to send a crafted sequence of SACKs which will fragment the RACK send map. An attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection (CVE-2019-5599).

Jonathan Looney discovered that the TCPSKBCB(skb)->tcpgsosegs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service (CVE-2019-11477).

Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service (CVE-2019-11478).

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service (CVE-2019-11479).

WireGuard has been updated to 0.0.20190601.

For other uptstream fixes in this update, see the referenced changelogs.

References
Credits

Affected packages

Mageia:6 / kernel

Package

Name
kernel
Purl
pkg:rpm/mageia/kernel?distro=mageia-6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.14.127-1.mga6

Ecosystem specific 

{
    "section": "core"
}

Mageia:6 / kernel-userspace-headers

Package

Name
kernel-userspace-headers
Purl
pkg:rpm/mageia/kernel-userspace-headers?distro=mageia-6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.14.127-1.mga6

Ecosystem specific 

{
    "section": "core"
}

Mageia:6 / kmod-vboxadditions

Package

Name
kmod-vboxadditions
Purl
pkg:rpm/mageia/kmod-vboxadditions?distro=mageia-6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.8-4.mga6

Ecosystem specific 

{
    "section": "core"
}

Mageia:6 / kmod-virtualbox

Package

Name
kmod-virtualbox
Purl
pkg:rpm/mageia/kmod-virtualbox?distro=mageia-6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.8-4.mga6

Ecosystem specific 

{
    "section": "core"
}

Mageia:6 / kmod-xtables-addons

Package

Name
kmod-xtables-addons
Purl
pkg:rpm/mageia/kmod-xtables-addons?distro=mageia-6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.13-88.mga6

Ecosystem specific 

{
    "section": "core"
}

Mageia:6 / wireguard-tools

Package

Name
wireguard-tools
Purl
pkg:rpm/mageia/wireguard-tools?distro=mageia-6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.0.20190601-1.mga6

Ecosystem specific 

{
    "section": "core"
}