Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is…
Priority LOW 26CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-189 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.03589 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 33
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cmu:cyrus-sasl:*:*:*:*:*:*:*:* | up to 2.1.26 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:1.5.28:*:*:*:*:*:*:* | 1.5.28 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:2.1.19:*:*:*:*:*:*:* | 2.1.19 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:2.1.20:*:*:*:*:*:*:* | 2.1.20 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:2.1.21:*:*:*:*:*:*:* | 2.1.21 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:2.1.22:*:*:*:*:*:*:* | 2.1.22 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:2.1.23:*:*:*:*:*:*:* | 2.1.23 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:2.1.24:*:*:*:*:*:*:* | 2.1.24 | Vulnerable | Panda3D |
| cpe:2.3:a:cmu:cyrus-sasl:2.1.25:*:*:*:*:*:*:* | 2.1.25 | Vulnerable | Panda3D |
| cpe:2.3:a:gnu:glibc:2.2:*:*:*:*:*:*:* | 2.2 | Running on | GNU |
- cpe:2.3:a:cmu:cyrus-sasl:*:*:*:*:*:*:*:* Versions up to 2.1.26 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:1.5.28:*:*:*:*:*:*:* Versions 1.5.28 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:2.1.19:*:*:*:*:*:*:* Versions 2.1.19 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:2.1.20:*:*:*:*:*:*:* Versions 2.1.20 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:2.1.21:*:*:*:*:*:*:* Versions 2.1.21 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:2.1.22:*:*:*:*:*:*:* Versions 2.1.22 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:2.1.23:*:*:*:*:*:*:* Versions 2.1.23 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:2.1.24:*:*:*:*:*:*:* Versions 2.1.24 Vulnerable ·Panda3D
- cpe:2.3:a:cmu:cyrus-sasl:2.1.25:*:*:*:*:*:*:* Versions 2.1.25 Vulnerable ·Panda3D
- cpe:2.3:a:gnu:glibc:2.2:*:*:*:*:*:*:* Versions 2.2 Running on ·GNU
Show 23 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:glibc:2.2.1:*:*:*:*:*:*:* | 2.2.1 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.2.2:*:*:*:*:*:*:* | 2.2.2 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.2.3:*:*:*:*:*:*:* | 2.2.3 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.2.4:*:*:*:*:*:*:* | 2.2.4 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.2.5:*:*:*:*:*:*:* | 2.2.5 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3:*:*:*:*:*:*:* | 2.3 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3.1:*:*:*:*:*:*:* | 2.3.1 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3.2:*:*:*:*:*:*:* | 2.3.2 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3.3:*:*:*:*:*:*:* | 2.3.3 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3.4:*:*:*:*:*:*:* | 2.3.4 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3.5:*:*:*:*:*:*:* | 2.3.5 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3.6:*:*:*:*:*:*:* | 2.3.6 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.3.10:*:*:*:*:*:*:* | 2.3.10 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.4:*:*:*:*:*:*:* | 2.4 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.5:*:*:*:*:*:*:* | 2.5 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.5.1:*:*:*:*:*:*:* | 2.5.1 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.6:*:*:*:*:*:*:* | 2.6 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.6.1:*:*:*:*:*:*:* | 2.6.1 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.7:*:*:*:*:*:*:* | 2.7 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.8:*:*:*:*:*:*:* | 2.8 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.9:*:*:*:*:*:*:* | 2.9 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.17:*:*:*:*:*:*:* | 2.17 | Running on | GNU |
| cpe:2.3:a:gnu:glibc:2.18:*:*:*:*:*:*:* | 2.18 | Running on | GNU |
- cpe:2.3:a:gnu:glibc:2.2.1:*:*:*:*:*:*:* Versions 2.2.1 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.2.2:*:*:*:*:*:*:* Versions 2.2.2 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.2.3:*:*:*:*:*:*:* Versions 2.2.3 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.2.4:*:*:*:*:*:*:* Versions 2.2.4 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.2.5:*:*:*:*:*:*:* Versions 2.2.5 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3:*:*:*:*:*:*:* Versions 2.3 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3.1:*:*:*:*:*:*:* Versions 2.3.1 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3.2:*:*:*:*:*:*:* Versions 2.3.2 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3.3:*:*:*:*:*:*:* Versions 2.3.3 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3.4:*:*:*:*:*:*:* Versions 2.3.4 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3.5:*:*:*:*:*:*:* Versions 2.3.5 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3.6:*:*:*:*:*:*:* Versions 2.3.6 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.3.10:*:*:*:*:*:*:* Versions 2.3.10 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.4:*:*:*:*:*:*:* Versions 2.4 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.5:*:*:*:*:*:*:* Versions 2.5 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.5.1:*:*:*:*:*:*:* Versions 2.5.1 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.6:*:*:*:*:*:*:* Versions 2.6 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.6.1:*:*:*:*:*:*:* Versions 2.6.1 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.7:*:*:*:*:*:*:* Versions 2.7 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.8:*:*:*:*:*:*:* Versions 2.8 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.9:*:*:*:*:*:*:* Versions 2.9 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.17:*:*:*:*:*:*:* Versions 2.17 Running on ·GNU
- cpe:2.3:a:gnu:glibc:2.18:*:*:*:*:*:*:* Versions 2.18 Running on ·GNU
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 6 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat JBoss Enterprise Application Platform 5
- Red Hat JBoss Enterprise Application Platform 6
- Red Hat JBoss Enterprise Web Server 2
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4122
- 2026-10-03 Alias added: GHSA-pwpx-m778-r79w
References
Advisory 3
Other 5
- https://www.linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/
- [oss-security] 20130715 Re: CVE request: Cyrus-sasl NULL ptr. dereference
- [oss-security] 20130713 Re: CVE request: Cyrus-sasl NULL ptr. dereference
- [oss-security] 20130712 Re: CVE request: Cyrus-sasl NULL ptr. dereference
- [oss-security] 20130712 CVE request: Cyrus-sasl NULL ptr. dereference
Sources
- CVE-2013-4122 · CVE Program
- CVE-2013-4122 · NVD
- FIRST EPSS
- GHSA-pwpx-m778-r79w · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4122 · Red Hat security data · CC BY 4.0
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