Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-vf77-8h7g-gghp
Advisory ID github_osv/GHSA-vf77-8h7g-gghp
Aliases CVE-2020-13934
Summary Improper Restriction of Operations within the Bounds of a Memory Buffer in Apache Tomcat An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-476 NULL Pointer Dereference
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
cvssv3.1 7.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json
generic_textual HIGH
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html
https://github.com/apache/tomcat
https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E
https://lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0ff71cef38a96d9c6f5362aac8@%3Cdev.tomcat.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html
https://security.netapp.com/advisory/ntap-20200724-0003
https://usn.ubuntu.com/4596-1
https://www.debian.org/security/2020/dsa-4727
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpuoct2020.html
cpuApr2021.html Other https://www.oracle.com/security-alerts/cpuApr2021.html
cpujan2022.html Other https://www.oracle.com/security-alerts/cpujan2022.html
CVE-2020-13934 https://nvd.nist.gov/vuln/detail/CVE-2020-13934
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.