Out-of-bounds Read in openSUSE Leap
CVE-2020-10769
A buffer over-read flaw was found in RH kernel versions before 5.0 in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allows a local attacker with user privileges to cause a denial of service.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- openSUSE Leap — versions 15.1
- Red Hat Enterprise Linux — versions 7.0
- Kernel — versions All kernel versions before 5.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi
- lkml.org/lkml/2019/1/21/675 (Exploit, Patch, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.oracle.com/security-alerts/cpuApr2021.html
Frequently asked questions
- What is CVE-2020-10769?
- CVE-2020-10769 is a medium-severity vulnerability in openSUSE Leap, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-06-26.
- How severe is CVE-2020-10769?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-10769 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.