VulnerabilityModified
CVE-2019-16869
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.
HIGH 7.5EPSS 8.42%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 8.42% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- netty/netty · debian/debian linux · canonical/ubuntu linux · redhat/jboss enterprise application platform
- Source
- cve@mitre.org
References
- https://access.redhat.com/errata/RHSA-2019:3892Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3901Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0159Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0160Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0161Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0164Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0445Third Party Advisory
- https://github.com/netty/netty/compare/netty-4.1.41.Final...netty-4.1.42.FinalPatch, Third Party Advisory
- https://github.com/netty/netty/issues/9571Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/poc-effectiveness/PoCAdaptation/tree/main/Adapted/CVE-2019-16869/5.0.0.Alpha1/exploit
- https://lists.apache.org/thread.html/0acadfb96176768caac79b404110df62d14d30aa9d53b6dbdb1407ac@%3Cissues.spark.apache.org%3E
- https://lists.apache.org/thread.html/19fed892608db1efe5a5ce14372137669ff639df0205323959af7de3@%3Cdev.olingo.apache.org%3E
- https://lists.apache.org/thread.html/2494a2ac7f66af6e4646a4937b17972a4ec7cd3c7333c66ffd6c639d@%3Cdev.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/2e1cf538b502713c2c42ffa46d81f4688edb5676eb55bd9fc4b4fed7@%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/35961d1ae00849974353a932b4fef12ebce074541552eceefa04f1fd@%3Cdev.olingo.apache.org%3E
- https://lists.apache.org/thread.html/37ed432b8eb35d8bd757f53783ec3e334bd51f514534432bea7f1c3d@%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/380f6d2730603a2cd6b0a8bea9bcb21a86c199147e77e448c5f7390b@%3Ccommits.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/3e6d7aae1cca10257e3caf2d69b22f74c875f12a1314155af422569d@%3Cdev.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/51923a9ba513b2e816e02a9d1fd8aa6f12e3e4e99bbd9dc884bccbbe@%3Cissues.spark.apache.org%3E
- https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f@%3Cdev.drill.apache.org%3E
- https://lists.apache.org/thread.html/6063699b87b501ecca8dd3b0e82251bfc85f29363a9b46ac5ace80cf@%3Cdev.olingo.apache.org%3E
- https://lists.apache.org/thread.html/64b10f49c68333aaecf00348c5670fe182e49fd60d45c4a3ab241f8b@%3Cissues.spark.apache.org%3E
- https://lists.apache.org/thread.html/681493a2f9b63f5b468f741d88d1aa51b2cfcf7a1c5b74ea8c4343fb@%3Cissues.spark.apache.org%3E
- https://lists.apache.org/thread.html/6e1e34c0d5635a987d595df9e532edac212307243bb1b49eead6d55b@%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/76540c8b0ed761bfa6c81fa28c13057f13a5448aed079d656f6a3c79@%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/799eb85d67cbddc1851a3e63a07b55e95b2f44f1685225d38570ce89@%3Cissues.spark.apache.org%3E
- https://lists.apache.org/thread.html/860acce024d79837e963a51a42bab2cef8e8d017aad2b455ecd1dcf0@%3Cissues.spark.apache.org%3E
- https://lists.apache.org/thread.html/9128111213b7b734ffc85db08d8f789b00a85a7f241b708e55debbd0@%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe@%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/a0f77c73af32cbe4ff0968bfcbbe80ae6361f3dccdd46f3177547266@%3Cissues.zookeeper.apache.org%3E
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.