Buffer overflow in Rsyslog
CVE-2014-3634
rsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash), possibly execute arbitrary code, or have other unspecified impact via a crafted priority (PRI) value that triggers an out-of-bounds array access.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.075 (94.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.075 · newest: 0.075 · change: 0.000
Affected products
- Rsyslog — versions 8.1.0, 8.1.1, 8.1.2
- Sysklogd Project — versions 1.1, 1.2, 1.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-updates/2014-10/msg00020.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2014-1671.html (vendor-advisory)
- advisories.mageia.org/MGASA-2014-0411.html
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00005.html (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2014-10/msg00021.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2014-1654.html (vendor-advisory)
- secunia.com/advisories/61720 (third-party-advisory)
- www.mandriva.com/security/advisories (vendor-advisory)
- www.openwall.com/lists/oss-security/2014/09/30/15 (mailing-list)
- secunia.com/advisories/61494 (third-party-advisory)
Frequently asked questions
- What is CVE-2014-3634?
- CVE-2014-3634 is a vulnerability in Rsyslog, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-11-02.
- Is CVE-2014-3634 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.