Описание
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| heimdal | fixed | 7.8.git20221115.a6cf945+dfsg-1 | package | |
| krb5 | fixed | 1.20.1-1 | package | |
| samba | fixed | 2:4.17.3+dfsg-1 | package | |
| samba | ignored | bullseye | package | |
| samba | ignored | buster | package |
Примечания
https://www.samba.org/samba/security/CVE-2022-42898.html
https://bugzilla.samba.org/show_bug.cgi?id=15203
samba: only exploitable in 32-bit systems, according to upstream advisory
MIT-krb5: https://github.com/krb5/krb5/commit/ea92d2f0fcceb54a70910fa32e9a0d7a5afc3583 (master)
MIT-krb5: https://github.com/krb5/krb5/commit/b99de751dd35360c0fccac74a40f4a60dbf1ceea (krb5-1.20.1-final)
MIT-krb5: https://github.com/krb5/krb5/commit/4e661f0085ec5f969c76c0896a34322c6c432de4 (krb5-1.19.4-final)
https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c
Heimdal: https://github.com/heimdal/heimdal/commit/0c56257bdac80da015878fffdb0f8a42b8d73246 (heimdal-7.7.1)
Heimdal regression: https://github.com/heimdal/heimdal/pull/1025
possible samba 4.13,4.15 regression: https://bugzilla.samba.org/show_bug.cgi?id=15243
and https://bugs.launchpad.net/ubuntu/+source/samba/+bug/2003867
EPSS
Связанные уязвимости
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
EPSS