CVE-2023-39975

2023-08-1615:15:11

Debian Security Bug Tracker

security-tracker.debian.org

mit kerberos 5

double free

vulnerability

authorization data

unix

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

41.3%

JSON

kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.

OSVersionArchitecturePackageVersionFilename
Debian12allkrb5< 1.20.1-2+deb12u1krb5_1.20.1-2+deb12u1_all.deb
Debian11allkrb5< 1.18.3-6+deb11u4krb5_1.18.3-6+deb11u4_all.deb
Debian999allkrb5< 1.21.3-2krb5_1.21.3-2_all.deb
Debian13allkrb5< 1.21.2-1krb5_1.21.2-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	krb5	< 1.20.1-2+deb12u1	krb5_1.20.1-2+deb12u1_all.deb
Debian	11	all	krb5	< 1.18.3-6+deb11u4	krb5_1.18.3-6+deb11u4_all.deb
Debian	999	all	krb5	< 1.21.3-2	krb5_1.21.3-2_all.deb
Debian	13	all	krb5	< 1.21.2-1	krb5_1.21.2-1_all.deb