CVE-2019-11478
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2019
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
SACK can cause extensive memory use via fragmented resend queue
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. 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 f070ef2ac66716357066b683fb0baf55f8191a2e.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux kernel
- Vendor
- Linux
- Product
- Linux kernel
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.4 | affected | custom | 4.4.182 | Unavailable | None listed |
| 4.9 | affected | custom | 4.9.182 | Unavailable | None listed |
| 4.14 | affected | custom | 4.14.127 | Unavailable | None listed |
| 4.19 | affected | custom | 4.19.52 | Unavailable | None listed |
| 5.1 | affected | custom | 5.1.11 | Unavailable | None listed |