CVE-2020-1751
Published: 17 April 2020
An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.
Priority
Medium
CVSS 3 base score: 7.0
Status
| Package | Release | Status |
|---|---|---|
|
eglibc Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Ignored
(out of support)
|
|
|
glibc Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(2.31-0ubuntu9)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(2.27-3ubuntu1.2)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(2.23-0ubuntu11.2)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
Patches: Upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d93769405996dfc11d216ddbe415946617b5a494 |
||
Notes
| Author | Note |
|---|---|
| leosilva | -esm releases only supports amd64 arch |
| mdeslaur | introduced in https://sourceware.org/git/?p=glibc.git;a=commit;h=d400dcac5e |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1751
- https://ubuntu.com/security/notices/USN-4416-1
- NVD
- Launchpad
- Debian