CVE-2008-5396
CVE-2008-5396 is a high-severity vulnerability in Asterisk Zaptel with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.
Key facts
- Severity: High (CVSS 2.0 base score 7.2)
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-189
- Affected product: Asterisk Zaptel
- Published:
- Last modified:
Description
Array index error in the (1) torisa.c and (2) dahdi/tor2.c drivers in Zaptel (aka DAHDI) 1.4.11 and earlier allows local users in the dialout group to overwrite an integer value in kernel memory by writing to /dev/zap/ctl, related to missing validation of the sync field associated with the ZT_SPANCONFIG ioctl.
Frequently asked questions
- What is CVE-2008-5396?
- Array index error in the (1) torisa.c and (2) dahdi/tor2.c drivers in Zaptel (aka DAHDI) 1.4.11 and earlier allows local users in the dialout group to overwrite an integer value in kernel memory by writing to /dev/zap/ctl, related to missing validation of the sync field associated with the ZT_SPANCONFIG ioctl.
- How severe is CVE-2008-5396?
- CVE-2008-5396 has a CVSS 2.0 base score of 7.2, rated high severity.
- Is CVE-2008-5396 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2008-5396?
- CVE-2008-5396 primarily affects Asterisk Zaptel. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2008-5396?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2008-5396 published?
- CVE-2008-5396 was published on 2008-12-09 and last updated on 2026-06-16.
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507459
- http://bugs.digium.com/view.php?id=13954
- http://secunia.com/advisories/32947
- http://secunia.com/advisories/32960
- http://www.openwall.com/lists/oss-security/2008/12/03/10
Affected products (4)
- cpe:2.3:a:asterisk:zaptel:*:*:*:*:*:*:*:*
- cpe:2.3:a:asterisk:zaptel:1.2:*:*:*:*:*:*:*
- cpe:2.3:a:asterisk:zaptel:1.2.27:*:*:*:*:*:*:*
- cpe:2.3:a:asterisk:zaptel:1.4:*:*:*:*:*:*:*
More vulnerabilities in Asterisk Zaptel
- CVE-2008-5744 — High (CVSS 7.2): Array index error in the dahdi/tor2.c driver in Zaptel (aka DAHDI) 1.4.11 and earlier allows local users in the dialout…
- CVE-2007-5690 — Medium (CVSS 4.6): Buffer overflow in sethdlc.c in the Asterisk Zaptel 1.4.5.1 might allow local users to gain privileges via a long…
All CVEs affecting Asterisk Zaptel →
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