Moderate: Red Hat Security Advisory: libpng security update

Updated libpng packages that fix security issues are now available for Red Hat Enterprise Linux. This update has been rated as having moderate security impact by the Red Hat Security Response Team. The libpng package contains a library of functions for creating and manipulating PNG Portable Netwo...

libpng multiple security vulnerabilities

Multiple DoS conditions on PNG images parsing...

Code injection

Off-by-one error in ICC profile chunk handling in the pngsetiCCP function in pngset.c in libpng before 1.2.22 beta1 allows remote attackers to cause a denial of service crash via a crafted PNG image, due to an incorrect fix for CVE-2007-5266...

CVE-2007-5268

pngrtran.c in libpng before 1.0.29 and 1.2.x before 1.2.21 use 1 logical instead of bitwise operations and 2 incorrect comparisons, which might allow remote attackers to cause a denial of service crash via a crafted PNG image...

Buffer overflow

pngrtran.c in libpng before 1.0.29 and 1.2.x before 1.2.21 use 1 logical instead of bitwise operations and 2 incorrect comparisons, which might allow remote attackers to cause a denial of service crash via a crafted PNG image...

CVE-2007-5266

Off-by-one error in ICC profile chunk handling in the pngsetiCCP function in pngset.c in libpng before 1.0.29 beta1 and 1.2.x before 1.2.21 beta1 allows remote attackers to cause a denial of service crash via a crafted PNG image that prevents a name field from being NULL terminated...

Null pointer dereference

Off-by-one error in ICC profile chunk handling in the pngsetiCCP function in pngset.c in libpng before 1.0.29 beta1 and 1.2.x before 1.2.21 beta1 allows remote attackers to cause a denial of service crash via a crafted PNG image that prevents a name field from being NULL terminated...

CVE-2007-5267

Off-by-one error in ICC profile chunk handling in the pngsetiCCP function in pngset.c in libpng before 1.2.22 beta1 allows remote attackers to cause a denial of service crash via a crafted PNG image, due to an incorrect fix for CVE-2007-5266...

Out-of-bounds

Certain chunk handlers in libpng before 1.0.29 and 1.2.x before 1.2.21 allow remote attackers to cause a denial of service crash via crafted 1 pCAL pnghandlepCAL, 2 sCAL pnghandlesCAL, 3 tEXt pngpushreadtEXt, 4 iTXt pnghandleiTXt, and 5 ztXT pnghandleztXt chunking in PNG images, which trigger...

CVE-2007-5268

pngrtran.c in libpng before 1.0.29 and 1.2.x before 1.2.21 use 1 logical instead of bitwise operations and 2 incorrect comparisons, which might allow remote attackers to cause a denial of service crash via a crafted PNG image...

CVE-2007-5268

pngrtran.c in libpng before 1.0.29 and 1.2.x before 1.2.21 use 1 logical instead of bitwise operations and 2 incorrect comparisons, which might allow remote attackers to cause a denial of service crash via a crafted PNG image...

CVE-2007-5266

CVE-2007-5266 : Off-by-one error in ICC profile chunk handling (png_set_iCCP in pngset.c) of libpng. Affects libpng versions before 1.0.29 beta1 and 1.2.x before 1.2.21 beta1. Root cause allows remote attacker to crash the program via a crafted PNG (name field not NULL terminated). Mitigation: up...

CVE-2007-5269

Certain chunk handlers in libpng before 1.0.29 and 1.2.x before 1.2.21 allow remote attackers to cause a denial of service crash via crafted 1 pCAL pnghandlepCAL, 2 sCAL pnghandlesCAL, 3 tEXt pngpushreadtEXt, 4 iTXt pnghandleiTXt, and 5 ztXT pnghandleztXt chunking in PNG images, which trigger...

CVE-2007-5266

Off-by-one error in ICC profile chunk handling in the pngsetiCCP function in pngset.c in libpng before 1.0.29 beta1 and 1.2.x before 1.2.21 beta1 allows remote attackers to cause a denial of service crash via a crafted PNG image that prevents a name field from being NULL terminated...

CVE-2007-5268: Undefined Security Weakness

pngrtran.c in libpng before 1.0.29 and 1.2.x before 1.2.21 use 1 logical instead of bitwise operations and 2 incorrect comparisons, which might allow remote attackers to cause a denial of service crash via a crafted PNG image...

CVE-2007-5266: Undefined Security Weakness

Off-by-one error in ICC profile chunk handling in the pngsetiCCP function in pngset.c in libpng before 1.0.29 beta1 and 1.2.x before 1.2.21 beta1 allows remote attackers to cause a denial of service crash via a crafted PNG image that prevents a name field from being NULL terminated...

Integer overflow

Microsoft Windows Explorer explorer.exe allows user-assisted remote attackers to cause a denial of service CPU consumption via a certain PNG file with a large tEXt chunk that possibly triggers an integer overflow in PNG chunk size handling, as demonstrated by badlycrafted.png...

CVE-2007-5133

Microsoft Windows Explorer explorer.exe allows user-assisted remote attackers to cause a denial of service CPU consumption via a certain PNG file with a large tEXt chunk that possibly triggers an integer overflow in PNG chunk size handling, as demonstrated by badlycrafted.png...

CVE-2007-5133

Microsoft Windows Explorer (explorer.exe) is affected by CVE-2007-5133. A crafted PNG file with a large tEXt chunk may trigger an integer overflow in PNG chunk size handling, allowing user‑assisted remote attackers to cause a denial of service (CPU consumption). The connected sources explicitly d...

CVE-2007-5133

Microsoft Windows Explorer explorer.exe allows user-assisted remote attackers to cause a denial of service CPU consumption via a certain PNG file with a large tEXt chunk that possibly triggers an integer overflow in PNG chunk size handling, as demonstrated by badlycrafted.png...