PT-2021-7696 · Rpm+10 · Rpm+10

Demi M. Obenour + 1 · Published 2021-02-11 · Updated 2022-11-10 · CVE-2021-20266

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions RPM (affected versions not specified)

Description A flaw was found in RPM's hdrblobInit() function in lib/header.c, which allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability. Exploitation of the vulnerability may allow a remote attacker to cause a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALSA-2021:4489

ALT-PU-2021-2518

ALT-PU-2021-2600

BDU:2023-01670

CESA-2021_4489

CVE-2021-20266

MGASA-2021-0167

OESA-2021-1223

OPENSUSE-SU-2021:1366-1

OPENSUSE-SU-2021:2682-1

OPENSUSE-SU-2021_1366-1

OPENSUSE-SU-2021_2682-1

RHSA-2021:4489

RHSA-2021_4489

RLSA-2021:4489

SUSE-SU-2021:2682-1

SUSE-SU-2021:3444-1

SUSE-SU-2021_2682-1

SUSE-SU-2021_3444-1

SUSE-SU-2022:3939-1

SUSE-SU-2022_3939-1

USN-5273-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Ibm Aix

Linuxmint

Rpm

Red Hat

Rocky Linux

Suse

Ubuntu

References · 61

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3421 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:1366-1 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1927741 · Patch
• https://osv.dev/vulnerability/RLSA-2021:4489 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20266 · Security Note
• https://bdu.fstec.ru/vul/2023-01670 · Security Note
• https://osv.dev/vulnerability/MGASA-2021-0167 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0303SE17MD · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC · Vendor Advisory
• https://osv.dev/vulnerability/USN-5273-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20271 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:4489 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-20266 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:3444-1 · Vendor Advisory