CVE-2008-6393
CVE-2008-6393 is a critical-severity vulnerability in Psi-im Psi with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.
Key facts
- Severity: Critical (CVSS 2.0 base score 10.0)
- EPSS exploit prediction: 18% (97th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-189
- Affected product: Psi-im Psi
- Published:
- Last modified:
Description
PSI Jabber client before 0.12.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a file transfer request with a negative value in a SOCKS5 option, which bypasses a signed integer check and triggers an integer overflow and a heap-based buffer overflow.
Frequently asked questions
- What is CVE-2008-6393?
- PSI Jabber client before 0.12.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a file transfer request with a negative value in a SOCKS5 option, which bypasses a signed integer check and triggers an integer overflow and a heap-based buffer overflow.
- How severe is CVE-2008-6393?
- CVE-2008-6393 has a CVSS 2.0 base score of 10.0, rated critical severity.
- Is CVE-2008-6393 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2008-6393?
- CVE-2008-6393 primarily affects Psi-im Psi. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2008-6393?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2008-6393 published?
- CVE-2008-6393 was published on 2009-03-03 and last updated on 2026-06-16.
References
- http://bugs.gentoo.org/show_bug.cgi?id=252830
- http://jolmos.blogspot.com/2008/12/psi-remote-integer-overflow.html
- http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html
- http://secunia.com/advisories/33311
- http://secunia.com/advisories/34119
- http://secunia.com/advisories/34259
- http://secunia.com/advisories/34301
- http://sourceforge.net/project/shownotes.php?release_id=658912
- http://www.debian.org/security/2009/dsa-1741
- http://www.openwall.com/lists/oss-security/2009/02/25/5
- http://www.securityfocus.com/archive/1/499563
- https://www.exploit-db.com/exploits/7555
- https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00071.html
- https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00080.html
Affected products (9)
- cpe:2.3:a:psi-im:psi:*:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.8.6:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.8.7:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.9:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.9.2:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.9.3:*:*:*:*:*:*:*
- cpe:2.3:a:psi-im:psi:0.11:*:*:*:*:*:*:*
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