CVE-2020-10769

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Summary

CVECVE-2020-10769
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-06-26 16:15:00 UTC
Updated2023-02-12 23:39:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All

References

ReferenceSourceLinkTags
Red Hat Customer Portal - Access to 24x7 support and knowledge MISC access.redhat.com
LKML: Greg Kroah-Hartman: [PATCH 4.14 21/59] crypto: authenc - fix parsing key with misaligned rta_len MISC lkml.org Exploit, Mailing List, Patch, Third Party Advisory
Red Hat Customer Portal MISC access.redhat.com
1708775 – (CVE-2020-10769) CVE-2020-10769 kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned. MISC bugzilla.redhat.com Issue Tracking, Vendor Advisory
Red Hat Customer Portal - Access to 24x7 support and knowledge MISC access.redhat.com
1708775 – (CVE-2020-10769) CVE-2020-10769 kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned. MISC bugzilla.redhat.com
Red Hat Customer Portal - Access to 24x7 support and knowledge MISC access.redhat.com
[security-announce] openSUSE-SU-2020:1153-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
1708775 – (CVE-2020-10769) CVE-2020-10769 kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned. MISC bugzilla.redhat.com
Oracle Critical Patch Update Advisory - April 2021 MISC www.oracle.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 174728 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2020:2122-1)
  • 174729 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2020:2106-1)
  • 752231 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2082-1)
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