CVE-2013-7439
Multiple off-by-one errors in the (1) MakeBigReq and (2) SetReqLen macros in include/X11/Xlibint.h in X11R6.x and libX11 before 1.6.0 allow remote attackers to have unspecified impact via a crafted
02 Description
Multiple off-by-one errors in the (1) MakeBigReq and (2) SetReqLen macros in include/X11/Xlibint.h in X11R6.x and libX11 before 1.6.0 allow remote attackers to have unspecified impact via a crafted
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.25% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 90.6% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2015-04-16 14:00Z11 YR AGO
- Last updated
- 2024-08-06 18:09Z2 YR AGO
- Reserved
- 2015-04-09
- Assigning CNA
- canonical
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 7ae18f6d5245acec33c9541270bf0066506ff0d7c7f844f5814953b655f23807
05 Affected products
06 References
- www.ubuntu.comUSN-2568-1http://www.ubuntu.com/usn/USN-2568-1
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- www.securityfocus.com73962http://www.securityfocus.com/bid/73962
- www.debian.orgDSA-3224http://www.debian.org/security/2015/dsa-3224
- seclists.org[oss-security] 20150409 Re: CVE Request: libX11: buffer overflow in MakeBigReq macrohttp://seclists.org/oss-sec/2015/q2/81
- lists.x.org[xorg-announce] 20150414 [ANNOUNCE] X.Org Security Advisory: Buffer overflow in MakeBigReq macrohttp://lists.x.org/archives/xorg-announce/2015-April/002561.html
- bugs.freedesktop.orghttps://bugs.freedesktop.org/show_bug.cgi?id=56508
07 Fixed in
Debian 12
- libx11 Fixed in 2:1.6.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libx11 Fixed in 2:1.6.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libx11 Fixed in 2:1.6.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- libxrender Fixed in 1:0.9.8-1build0.14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.