Description
Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs 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. This has been fixed in stable kernel releases
4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit
3b4929f65b0d8249f19a50245cd88ed1a2f78cff.
Ubuntu-Description
Jonathan Looney discovered that an integer overflow existed in the Linux
kernel when handling TCP Selective Acknowledgments (SACKs). A remote
attacker could use this to cause a denial of service (system crash).
Notes
tyhicks | Known as "SACK Panic" |
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-52.56)
|
Ubuntu 16.04 ESM: | released
(4.4.0-151.178)
|
Ubuntu 14.04 ESM: | released
(3.13.0-171.222)
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1041.43)
|
Ubuntu 16.04 ESM: | released
(4.4.0-1085.96)
|
Ubuntu 14.04 ESM: | released
(4.4.0-1046.50)
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 16.04 ESM: | released
(4.15.0-1041.43~16.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.18.0-1020.20~18.04.1)
|
Ubuntu 16.04 ESM: | released
(4.15.0-1047.51)
|
Ubuntu 14.04 ESM: | released
(4.15.0-1047.51~14.04.1)
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.18.0-1020.20~18.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1034.36)
|
Ubuntu 16.04 ESM: | released
(4.15.0-1034.36~16.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.18.0-1013.14~18.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1034.36)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | not-affected
(5.0.0-1011.11~18.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.18.0-22.23~18.04.1)
|
Ubuntu 16.04 ESM: | released
(4.15.0-52.56~16.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(5.0.0-17.18~18.04.1)
|
Ubuntu 16.04 ESM: | released
(4.15.0-52.56~16.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1036.36)
|
Ubuntu 16.04 ESM: | released
(4.4.0-1048.55)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | released
(4.4.0-151.178~14.04.1)
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | DNE
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1043.48)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1015.17)
|
Ubuntu 16.04 ESM: | released
(4.15.0-1015.17~16.04.1)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1038.40)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Package
Upstream: | released
(5.2~rc6)
|
Ubuntu 18.04 LTS: | released
(4.15.0-1055.59)
|
Ubuntu 14.04 ESM: | DNE
|
Patches:
Updated: 2022-04-13 13:37:05 UTC (commit f411bd370d482ef4385c4e751d121a4055fbc009)