Bugzilla – Bug 1217833
VUL-0: CVE-2023-39326: go1.20,go1.21: net/http: limit chunked data overhead
Last modified: 2024-03-27 14:50:38 UTC
A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small. Thanks to Bartek Nowotarski for reporting this issue. This is CVE-2023-39326 and Go issue https://go.dev/issue/64433.
This is an autogenerated message for OBS integration: This bug (1217833) was mentioned in https://build.opensuse.org/request/show/1131274 Factory / go1.20 https://build.opensuse.org/request/show/1131275 Factory / go1.21
SUSE-SU-2023:4709-1: An update that solves three vulnerabilities and has one security fix can now be installed. Category: security (important) Bug References: 1212475, 1216943, 1217833, 1217834 CVE References: CVE-2023-39326, CVE-2023-45284, CVE-2023-45285 Sources used: openSUSE Leap 15.4 (src): go1.21-1.21.5-150000.1.18.1 openSUSE Leap 15.5 (src): go1.21-1.21.5-150000.1.18.1 Development Tools Module 15-SP4 (src): go1.21-1.21.5-150000.1.18.1 Development Tools Module 15-SP5 (src): go1.21-1.21.5-150000.1.18.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2023:4708-1: An update that solves three vulnerabilities and has one security fix can now be installed. Category: security (important) Bug References: 1206346, 1216943, 1217833, 1217834 CVE References: CVE-2023-39326, CVE-2023-45284, CVE-2023-45285 Sources used: openSUSE Leap 15.4 (src): go1.20-1.20.12-150000.1.35.1 openSUSE Leap 15.5 (src): go1.20-1.20.12-150000.1.35.1 Development Tools Module 15-SP4 (src): go1.20-1.20.12-150000.1.35.1 Development Tools Module 15-SP5 (src): go1.20-1.20.12-150000.1.35.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2023:4931-1: An update that solves three vulnerabilities and has one security fix can now be installed. Category: security (important) Bug References: 1212475, 1216943, 1217833, 1217834 CVE References: CVE-2023-39326, CVE-2023-45284, CVE-2023-45285 Sources used: Development Tools Module 15-SP5 (src): go1.21-openssl-1.21.5.1-150000.1.8.1 openSUSE Leap 15.4 (src): go1.21-openssl-1.21.5.1-150000.1.8.1 openSUSE Leap 15.5 (src): go1.21-openssl-1.21.5.1-150000.1.8.1 Development Tools Module 15-SP4 (src): go1.21-openssl-1.21.5.1-150000.1.8.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2023:4930-1: An update that solves three vulnerabilities and has one security fix can now be installed. Category: security (important) Bug References: 1206346, 1216943, 1217833, 1217834 CVE References: CVE-2023-39326, CVE-2023-45284, CVE-2023-45285 Sources used: openSUSE Leap 15.4 (src): go1.20-openssl-1.20.12.1-150000.1.17.1 openSUSE Leap 15.5 (src): go1.20-openssl-1.20.12.1-150000.1.17.1 Development Tools Module 15-SP4 (src): go1.20-openssl-1.20.12.1-150000.1.17.1 Development Tools Module 15-SP5 (src): go1.20-openssl-1.20.12.1-150000.1.17.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.