QID 174780

Date Published: 2021-04-19

QID 174780: SUSE Enterprise Linux Security update for openldap2 (SUSE-SU-2021:0692-1)

This update for openldap2 fixes the following issues:

- bsc#1182408 CVE-2020-36230 - an assertion failure in slapd in the X.509
DN parsing in decode.c ber_next_element, resulting in denial
of service.
- bsc#1182411 CVE-2020-36229 - ldap_X509dn2bv crash in the X.509 DN
parsing in ad_keystring, resulting in denial of service.
- bsc#1182412 CVE-2020-36228 - integer underflow leading to crash in the
Certificate List Exact Assertion processing, resulting in denial of
service.
- bsc#1182413 CVE-2020-36227 - infinite loop in slapd with the
cancel_extop Cancel operation, resulting in denial of service.
- bsc#1182416 CVE-2020-36225 - double free and slapd crash in the
saslAuthzTo processing, resulting in denial of service.
- bsc#1182417 CVE-2020-36224 - invalid pointer free and slapd crash in the
saslAuthzTo processing, resulting in denial of service.
- bsc#1182415 CVE-2020-36226 - memch->bv_len miscalculation and slapd
crash in the saslAuthzTo processing, resulting in denial of service.
- bsc#1182419 CVE-2020-36222 - assertion failure in slapd in the
saslAuthzTo validation, resulting in denial of service.
- bsc#1182420 CVE-2020-36221 - slapd crashes in the Certificate Exact
Assertion processing, resulting in denial of service (schema_init.c
serialNumberAndIssuerCheck).
- bsc#1182418 CVE-2020-36223 - slapd crash in the Values Return Filter
control handling, resulting in denial of service (double free and
out-of-bounds read).
- bsc#1182279 CVE-2021-27212 - an assertion failure in slapd can occur in
the issuerAndThisUpdateCheck function via a crafted packet, resulting in
a denial of service (daemon exit) via a short timestamp. This is related
to schema_init.c and checkTime.

Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
  • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: https://lists.suse.com/pipermail/sle-security-updates/2021-March/008431.html to address this issue and obtain further details.
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:0692-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-March/008431.html
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