CVE-2022-29901
Published: July 12, 2022Last modified: October 18, 2023
Description
Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.50-r0) |
| Stream | linux-lts | Not affected (6.1.50-r0) |
References
- http://www.openwall.com/lists/oss-security/2022/07/12/2
- http://www.openwall.com/lists/oss-security/2022/07/12/4
- http://www.openwall.com/lists/oss-security/2022/07/12/5
- http://www.openwall.com/lists/oss-security/2022/07/13/1
- https://comsec.ethz.ch/retbleed
- https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4RW5FCIYFNCQOEFJEUIRW3DGYW7CWBG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M27MB3QFNIJV4EQQSXWARHP3OGX6CR6K/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/D4RW5FCIYFNCQOEFJEUIRW3DGYW7CWBG/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/M27MB3QFNIJV4EQQSXWARHP3OGX6CR6K/
- https://security.gentoo.org/glsa/202402-07
- https://security.netapp.com/advisory/ntap-20221007-0007/
- https://www.debian.org/security/2022/dsa-5207
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00702.html
- https://www.secpod.com/blog/retbleed-intel-and-amd-processor-information-disclosure-vulnerability/