cyrus-sasl: NULL pointer dereference (DoS) when glibc v.2.17 or FIPS-140 enabled Linux system used
Published Oct 27, 2013
4.3
MEDIUMCVSS 2.0
EPSS 3.59%
Description
Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.
Affected products
No data.
- ≤ 2.1.26
- 1.5.28
- 2.1.19
- 2.1.20
- 2.1.21
- 2.1.22
- 2.1.23
- 2.1.24
- 2.1.25
Running on/with
- 2.2
- 2.2.1
- 2.2.2
- 2.2.3
- 2.2.4
- 2.2.5
- 2.3
- 2.3.1
- 2.3.2
- 2.3.3
- 2.3.4
- 2.3.5
- 2.3.6
- 2.3.10
- 2.4
- 2.5
- 2.5.1
- 2.6
- 2.6.1
- 2.7
- 2.8
- 2.9
- 2.17
- 2.18
No data.
Red Hat Enterprise Linux 5
cyrus-sasl
Not affected
Red Hat Enterprise Linux 6
cyrus-sasl
Not affected
Red Hat Enterprise Linux 7
cyrus-sasl
Not affected
Red Hat JBoss Enterprise Application Platform 5
cyrus-sasl
Not affected
Red Hat JBoss Enterprise Application Platform 6
cyrus-sasl
Not affected
Red Hat JBoss Enterprise Web Server 2
cyrus-sasl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | cyrus-sasl | Not affected | n/a |
| Red Hat Enterprise Linux 6 | cyrus-sasl | Not affected | n/a |
| Red Hat Enterprise Linux 7 | cyrus-sasl | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | cyrus-sasl | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | cyrus-sasl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | cyrus-sasl | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not Vulnerable. This issue does not affect the version of cyrus-sasl package as shipped with Red Hat Enterprise Linux 5 and 6.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.59% (0.03589) | 89.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.59% (0.03589) | 87.90th | v5 (v2026.06.15) |
| Oct 15, 2025 | 1.18% (0.01179) | 77.99th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.41% (0.02409) | 83.64th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.66% (0.03662) | 79.55th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.41% (0.02409) | 83.99th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.00% (0.00997) | 84.27th | v3 (v2023.03.01) |
| Jul 14, 2024 | 1.00% (0.00997) | 83.77th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.84% (0.00842) | 81.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.84% (0.00842) | 79.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.78% (0.01776) | 76.86th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.78% (0.01776) | 76.81th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.78% (0.01776) | 74.78th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.78% (0.01776) | 53.99th | v2 (v2022.01.01) |
References (13)
- http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d x_refsource_CONFIRMExploitPatch
- http://security.gentoo.org/glsa/glsa-201309-01.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2015/dsa-3368 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2013/07/12/3 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2013/07/12/6 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2013/07/13/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2013/07/15/1 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-2755-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-4122 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=984669 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-4122
- https://www.cve.org/CVERecord?id=CVE-2013-4122
- https://www.linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/ x_refsource_MISC
Change history (0)
No recorded changes yet.